Data Logging, A Basic How To

[rallispec]

I've just started messing around with the data logging options we have available to us.. and I’ve been extremely surprised at how easy it actually is.


My goal here is combine all the information I've gathered so far and collect it into one place so members here can have a reference for their logging needs.


Hopefully, this will encourage more people to begin data logging and contribute to the information we have already collected.


Please feel free to add your own contributions and corrections.

This walkthrough is designed to be used with the TARI RACING SOFTWARE, available FREE at http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1125302367 (http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1125302367)


WHAT YOU WILL NEED

1)A laptop with a serial port, or
2)A USB to serial adapter (or PCMCIA to serial adapter)
3)OBD to Serial cable. I have been using the cable supplied with my Cobb AccessPort. Other cables are available for sale at http://www.tactrix.com/ (http://www.tactrix.com/)




Getting Started


1. Calvin at TARI has put together an install package – (http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1125302367 (http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1125302367))
***Direct Download SetupDL1.exe (http://www.tari.co.za/download/SetupDL1.exe)***
***Mirror link (http://www.spillihp.com/danny/DL1/SetupDL1.exe) ***


2. Run the setup.exe file you just downloaded, it should talk you through the setup process and is pretty straight forward.


3. Make sure you’re laptop is charged up, Grab your Serial adapter and OBD cable and head out to your car


4. Plug the ODB end of the cable up to your car. The Connection is made in the drivers side foot well, in the area above the dead pedal and below the fuse box. You can’t miss it.


5. Connect up to your computer and start the TARI DL1 application


USING THE TARI DL1 Application


1. Once the cables are connected and the application is running – you may notice that several tabs are grayed out and unavailable. This will be the case until a connection has been established with the car.


2. To establish connection, Turn your ignition to the ON or ACC position. You do not need to start the engine. You should now see “Connected” in the bottom of the application and you will have access to the “LIVE” and “Alarm” tabs.


3. Go ahead and open the LIVE tab, here you will see all of the variables that you can log. The upper window lists the continuously changing analog variables, such as engine speed and throttle position. The lower window lists your digital parameters. Those are ones that only have 2 states, on or off.


4. As you select which parameters you want to monitor you may notice the logging interval (listed in milliseconds at the bottom of the window) increase. The lower the interval, the faster the parameters are updated. The more parameters you select, the slower it will go. I try to limit myself to 10 parameters.

(note - if you select to many paremeters - IT WILL NOT WORK)


FOR ECU EXPLORER
A more detailed write up is coming for using ECU Explorer - however the tari forums are a good source of information in the mean time. The thing to watch out for when using this software is to remember to select which com port/ device to use in the lower left hand box - and then right click on the main window to bring up your options for logging.


LOGGING DATA



If you’ve gotten this far, then you’re doing good – all that is left is to actually log some data. The way the application is designed, it uses the defogger switch on you car as the start/stop button for logging.


1. In the TARI DL1 application, open the “CAPTURE” tab at the top of your screen and verify that “trigger logging on defog switch” is checked off. If it isn’t, check that now.


2. In the DIGITAL DATA ITEMS window check the box to monitor the DEFOGGER SWITCH. This is important, if you aren’t monitoring the defog switch, the software won’t know when to start or stop logging.


3. Go ahead and press the rear windshield defog button on your center console. In the software you may notice the text at the bottom of the application will change to reflect the fact that it is logging data.


4. After it has run for a while, press the defog switch again to stop logging and open up the log file to verify that it worked. The log file should be located at :
C:\program files\TARI Racing Software\My Product name\logfile.CSV


5. The log is saved as .CSV spreadsheet that will open in Microsoft Excel.




So now you’re ready to log… That’s all there is too it.

[rallispec]

Of course, logging data is only good if you can make sense of the information you’ve got. So here is my attempt to explain the different data fields available and what they are.



I’m hoping that other members here will help me fill in the gaps on the things I don’t know.







First, let me show you what you can monitor:




ANALOG DATA VALUE

Engine Speed............................ RPM
Manifold Absolute Pressure ........PSI
Air/Fuel Learning #1 ...................%
Air/Fuel Correction #1 ................%
Coolant Temperature ..................Deg. F
Rear O2 Sensor .........................Volts
Throttle Opening Angle................. %
Mass Air Flow ............................g/s
Air Intake Temperature Deg. ........F
Ignition Timing Deg. ....................BTDC
Vehicle Speed ...........................KPH/MPH
Atmospheric Pressure ................PSI
Knock Correction Deg. .............BTDC
Fuel Injector #1 Pulse Width ......%
Air Flow Sensor Voltage ...........Volts
Battery Voltage ........................Volts
Fuel Temperature..................... Deg. F
Accelerator Opening Angle .......%
Fuel Tank Pressure ...................PSI
Manifold Relative Pressure .........PSI
Tumble Valve Position Sensor....Volts
CPC Valve Duty Ratio .................%
Primary Wastegate Duty Cycle ......%
Fuel Level ....................................Volts
Fuel Pump Duty ...............................%
Tumble Valve Position Sensor (L)...Volts
Air/Fuel Sensor #1 Current............. ma
Intake OCV Current Left ................ma
Intake OCV Current Right.............. ma
Intake OCV Duty Left ....................%
Intake OCV Duty Right ...................%
Intake WT Advance Angle Left .......Deg.
Intake WT Advance Angle Right .......Deg.
Air/Fuel Correction #3 ........................%
Air/Fuel Sensor #1 .............................AFR
Air/Fuel Sensor #1 Resistance ............Ohms
Throttle Motor Voltage ......................Volts
Main Accelerator Sensor ...................Volts
Sub Accelerator Sensor .....................Volts
Main Throttle Sensor ........................Volts
Sub Throttle Sensor ..........................Volts
Memorized Cruise Speed................... MHP





DIGITAL DATA VALUE

Test Mode Connector On/Off
AT Vehicle ID On/Off
Air-Con Switch On/Off
Power Steering Switch On/Off
Ignition Switch On/Off
Idle Switch On/Off
Neutral Position Switch On/Off
Knock Signal #1 On/Off
Rear O2 Rich Signal On/Off
Starter Switch On/Off
Interior Light Switch On/Off
Blower Switch On/Off
Defogger Switch On/Off
Cam Position Sensor On/Off
Crank Position Sensor On/Off
Blowby Leak Connector On/Off
Radiator Fan Relay #2 On/Off
Radiator Fan Relay #1 On/Off
Air-Con Compressor Signal On/Off
Vent Solenoid Valve On/Off
TGV Drive On/Off
TGV Output On/Off
PCV Solenoid Valve On/Off
Tank Sensor Control Valve On/Off
Torque Control Signal #2 On/Off
Accelerator Switch On/Off
Brake Switch On/Off
Resume Accelerate Switch On/Off
Set Coast Switch On/Off
Stop Light Switch On/Off
Clutch Switch On/Off
Roughness Monitor Cylinder #4
Roughness Monitor Cylinder #3
Roughness Monitor Cylinder #2
Roughness Monitor Cylinder #1

[rallispec]

Some parameters are self explanatory, others are not. I won’t pretend to know what they all mean but I can explain some. Here is what I’ve gathered so far (much of this was taken from the website listed above)



Boost related:



Primary Wastegate duty cycle – the higher the duty cycle, the higher the boost. If you see 0%, you will see either no, or negative boost.
(*Hopefully somebody can explain this better than me*)



Atmospheric Pressure – The outside air pressure. Around 14.5 PSI at sea level. This sensor reads both atmosphere and manifold pressure so it may not update continuously.



Manifold Absolute Pressure – Pressure in the manifold relative to a vacuum. You would subtract 14.5psi to get the relative pressure. (1 Bar = 14.5psi)

Manifold Relative Pressure – Common measurement for ‘boost’. You will see negative numbers here during idle or limited load on the engine, and peaks around 12 or 13psi under full boost (stock) and 15psi if your AP stage 1.





Intake air temperature– This is the temperature of the air at the intake filter, basically the temperature inside the engine bay. It will read a bit warmer than outside temperature, especially at stoplights or while at idle. This is not the charge temperature, after the air goes through the turbo it will heat up substantially.







Fuel / Engine related:



Injector Milliseconds – measured in milliseconds (Duty cycle is an option under the ‘capture tab’). This measures the number of milliseconds that each injector is open for each cylinder cycle. If you see your duty cycle maxing out then it is a good sign that you need larger injectors.



Air Fuel Sensor #1 – AFR, Air Fuel Ratio : it's the ratio between the mass of air and the mass of fuel in the air-fuel mixture. AFR = M(Air)/M(Fuel).

(Lambda (greek letter) : it's defined by the ratio between the actual measured AFR and the stoich AFR. Therefore, if an AFR of 14.7 is measured in the exhaust gas, Lambda = 1. Lambda is often used in Europe.)

-LEAN (represented as a Higher AFR) gives better combustion, and better gas mileage. To lean is dangerous, can cause knock, higher temperatures, and higher NOx emmissions, among other problems)

-RICH (represented by a lower AFR) allows for more torque, thus more power. However this is at the cost of fuel economy. Also reduces NOx emmissions. However unburnt fuel passes through the exhaust and can cause fouled spark plugs, diry tailpipe, and probably catalytic converter problems.



A/F correction and Learning - #1 is the front sensor, #3 is the rear sensor. These are used to calculate the AFR short term correction values to maintain the proper AFR.



Rear O2 Sensor – Measures O2 levels in the exhaust, it is used to calculate proper AFR.



Exhaust Gas Temperature - Reports the temperature at the exhaust of the car. It only reads as low 370 degrees so don’t be surprised when you see this with your car turned off. If the temperature is to low then your Catalytic converters won’t work properly, while if it gets too high you risk CAT damage. I think anything in the area of 1500 degrees is normal for our cars.



Ignition Timing - The timing that your engine is currently running, including any knock correction



Knock Correction – I’m pretty sure it only reads -8 to 12 or higher. The amount of timing added or subtracted from the ignition timing. Negative values are bad, and indicated pulled timing due to the presence of knock. Positive Values are good and indicate an increase in timing. The more timing you can get without knock means the more power you can get. Knock is BAD, if you see consistent negative numbers than you’ve got something wrong. The periodic dip into negative numbers isn’t bad. Causes of knock can include lean AFR, high temp, bad gas, low octane gas, and many other causes.

Intake OCV duty/current - Intake OCV is the Oil Control Valve that changes the cam timing


Tumbler Valve position - Tumbler Valve position is the position of the Tumble valves

Intake VVT advance angle Left/Right – Variable Valve Timing. Reports the amount of intake cam advance applied. One for the left side of the engine, and one for the right. Higher angles allow the engine to ‘breathe easier” under load. If you always notice large differences between the left and right, it could indicate a problem.



Oil Control Valve duty Left/Right – This, along with the valve duty current sensors help control the VVT angle.







BASIC STUFF



Engine speed – as measured in RPM

Battery Voltage – should be in the area of 14volts with the car turned on

Coolant Temp. - should be 85-95 for a ‘warmed up’ engine. Rule of thumb is let the engine get to 80 before really pushing it.

Vehicle Speed - change between KPH and MPH in the “capture” tab.



Mass Air Flow - the rate of flow of air into the engine

Throttle Angle – how open the throttle is – such as how hard you pressing on the gas pedal

Accelerator Pedal Sensor – relative to the position of the gas pedal. The fly-by-wire system takes this data and controls the throttle angle.





Digital Data Items



These are usually switches, and only have a 1 or 0 value, indicating on or off.



You may want to keep an eye on the knock sensor, which will turn on if knock is detected.

[edmundu]

THE KC values read higher than +8, I have logged as high as +10, and I have heard it can go to 12?

Anyway, very nice writeup! It will certainly help alot of us out in getting acclimated with logging.

[PhilT]

Nicely written, thanks, hopefully get lots off people logging once they know how easy it is.

With the PWDC, I often see 50% operation at very low rpm's, as if the ECU is getting the gas to bypass the turbo until the rpms climb up to over 3,000. Maybe this is to help stop and go driving when you dont want the boost coming on at all ?

[rallispec]

thanks for the input guys...


I too hope this gets more people logging so we can start collecting some solid data from various mods.

[PhilT]

We might even get a forum just for logs.......................

[rao]

Intake OCV is the Oil Control Valve that changes the cam timing

Tumbler Valve position is the position of the Tumble valves

[rony]

Nice write up...

Might want to change the first post to reflect that fact that some laptops do still come with a serial port. ;)

[ilh]

Doesn't a higher AFR mean leaner? AFR = air/fuel, so higher means more air/less fuel.

???

[PhilT]

Doesn't a higher AFR mean leaner? AFR = air/fuel, so higher means more air/less fuel.

???

Yes. It's the ratio of air to fuel, for example 12.7:1 means 12.7 g of air for every 1 g of fuel.

The higher the number gets the leaner the mixture is.

[jarrod]

Hey phil..do you know what point TPS % the fueling switches over to open loop?

[ilh]

Air Fuel Sensor #1 – The default measurement is Lambda, however under the “capture” tab you can change that to read AFR instead. This is the air/fuel ratio and is measured at the engine exhaust before the first catalytic converter.Lower AFR’s reflect a ‘lean’ condition which means your engine is getting less fuel and more air. This can cause ‘knock’, pulled timing, and higher temperatures, and should be avoided. Then this text needs editing.

I'm considering picking up a cable so I can log some stutters and use that when I go back to the dealer and say the ECU reflash definitely didn't fix the problem.

[PhilT]

One thing also worth mentioning is that the more parameters you log at the same time, the longer the sampling period is between each point.

Sorry Jarrod, I'm a n00b at this logging, although I'm learning pretty quick :D

[rallispec]

sorry I'll correct the AFR definition to make it more accurate.. All this time I've been reading it backwards, not quiet sure how it got in my head...

oh well, thanks for clearing it up. Please keep the corrections and additions coming.

[jarrod]

I'm king of new at this logging to..i'm using the logger in the utec

[highwaydrifter]

awesome post? can we sticky it?

[rallispec]

I've got to find a better way to read data out of the OBD port than the AP cable.

I wanted to do some logs while I was at the track this past weekend, but the cable wouldn't stay plugged in around the turns... It cant handle the G's.


anyone have any ideas. I'm thinking of a more permanent solution that will run a serial cable through the center console down under the passenger seat to what will eventually be the location of a carputer.

[fzanetti]

Very well written, congrats and thanks for the info!!!!

Good luck with your new findings and work to be done,

Cheers,

Flavio Zanetti
Boston, MA

[PhilT]

Has anyone taken any logs using the new Ecu Explorer ? I'm having trouble getting it to recognise my serial port. Looks a big improvement, if only I could use it !

[rallispec]

Has anyone taken any logs using the new Ecu Explorer ? I'm having trouble getting it to recognise my serial port. Looks a big improvement, if only I could use it !

I haven't tried it yet.. I need to download it and check it out..... I'm really waiting for the guy who made it to release the source code.. I've got a couple of cool things I would like to do with it - but dont feel like desinging it from the ground up.

[TSi+WRX]

rallispec -

First, please keep in mind, brother, that I have NOT attempted this on my LGT.... ;)

With that disclaimer in-mind.

In my many trips below that part of the dash (hardwiring my X50/ZR3 combo, which has its own control box, plus the DRL/fog mods, plus wiring-in my NEXUS's control module), I've had to remove the OBD-II port several times in order to completely remove the toe-guard/cabin noise-isolation trim piece under the dash/column.

I would think that as you're currently having G-force :D related issues, and would furthermore like to completely "bury" the attachment point between the OBD-II port and the logging-tool cable, why don't you simply remove the four screws securing the OBD-II port to the trim piece? :)

This way, you can now tuck the OBD-II port inside/underneath the dash, tape/clip together its connection with your logger-cable so that it does not come loose, and use under-dash space, proceeding towards the center of the vehicle and thus "under" the middle console, for your planned routing of the car-puter wiring.

Of course, you'd have to go back under the dash to "unclip" the logger connection and to replace the OBD-II port's securing screws when you take the car in for an emissions-check or dealer-servicing....but overall, I'd say this should be a viable trade-off between convenience and practicality.

[PhilT]

rallispec -

First, please keep in mind, brother, that I have NOT attempted this on my LGT.... ;)

With that disclaimer in-mind.

In my many trips below that part of the dash (hardwiring my X50/ZR3 combo, which has its own control box, plus the DRL/fog mods, plus wiring-in my NEXUS's control module, I've had to remove the OBD-II port several times in order to completely remove the toe-guard/cabin noise-isolation trim piece under the dash/column.

I would think that as you're currently having G-force :D related issues, and would furthermore like to completely "bury" the attachment point between the OBD-II port and the logging-tool cable, why don't you simply remove the four screws securing the OBD-II port to the trim piece? :)

This way, you can now tuck the OBD-II port inside/underneath the dash, tape/clip together its connection with your logger-cable so that it does not come loose, and use under-dash space, proceeding towards the center of the vehicle and thus "under" the middle console, for your planned routing of the car-puter wiring.

Thats the long version of saying "move it" :lol:

[rallispec]

Thats the long version of saying "move it" :lol:

heh... pretty cool idea though, i hadnt really thought of doing it that way.


THanks for the input TSI+WRX... i'll give it some thought and poke around under the dash and see if that looks like a good solution.

[TSi+WRX]

NP, brotha. :)

PhilT - I often lose my wordly elegance for wordy diarrhea! :p :lol:

[rodan]

Anyone know the possible values for Ignition Advance Modifier?

[KGreb]

Anyone know the possible values for Ignition Advance Modifier?
Possible values are 0.0 - 1.0, with 0.50 being the value at ECU reset. Finding the addresses and figuring out the data representations are the tricky part. I've been testing a couple of things for Calvin and I suspect you'll see at least partial IAM support on the next release.

[rodan]

Thx - I'm using Delta Dash, so I'm already getting IAM...

[SeeeeeYa]

Being extremely interested in datalogging the OBD-II port, and having the AP cable and a laptop, I have researched the subject and find that virtually every reference called for a HARDWARE INTERFACE, except for this forum. As stated by one site,
"ISO, however, is a Godsend. This is because it uses a data-format that a standard PC UART can deal with, the only thing you need to do is to convert the RS232 voltage levels of the PC into the 12V OBD-II levels of the ECU interface."
Before I either muck up my laptop or my car's ECU can anyone comment, preferably about personal experience.

[edmundu]

SeeeeeYa,

Since you have the necessary hardware, all you need is the Tari Logging software, available for free here (http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?board=ecuExplorer_LatestReleases)! With it you can log, and then using DeltaDash demo, you can view your logs in a easy to read graphical format!

Also, if you only have USB ports on the laptop, you will need to pick up a USB to serial converter...

[SeeeeeYa]

Thanks for the reply edmundo. My Vaio only has USBs so I did get the required USB to serial adaptor. However, and pardon my ignorance here, I don't know what "DeltaDash demo" refers to. Please educate me.

[SeeeeeYa]

OK. OK. Got it. Since I have the AccessPORT I was not aware that DeltaDash was EcuTeK's software. Downloaded the demo version. And after rereading your post I understand. Thanks. Now all I have to do is give it a go! Anticipation....

[rallispec]

OK. OK. Got it. Since I have the AccessPORT I was not aware that DeltaDash was EcuTeK's software. Downloaded the demo version. And after rereading your post I understand. Thanks. Now all I have to do is give it a go! Anticipation....

hope you're all cleared up on things.... Technically you dont need the delta dash software to view the logs.. but it can graphically display things which may make it a bit easier to understand.



but other than that, sounds like you've got the gist of things. Just plug the AP cable up the car, plug the other end to your usb/serial adapter and then to your laptop... then just fire up the TARI software and start logging.

[KGreb]

For those who are interested, a new version of ECU Explorer is available on the Tari boards. I have verified that it reads load and IAM properly on a 2005 LGT, AJ17A ECU code.

[rallispec]

For those who are interested, a new version of ECU Explorer is available on the Tari boards. I have verified that it reads load and IAM properly on a 2005 LGT, AJ17A ECU code.


i'm going to download it this weekend and try it out, and then i'll update the first post.

[MarcusDubya77]

i could really use this info..i downloaded the logger and couldn't get anywhere after that...great write up

[KGreb]

Another note - new release available (1.0.74) this morning that is supposed to fix the lockups some users see when datalogging multiple data items. This seems to be most common with the Cobb AP cable.

Link to the relase notes - http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1131613339/. Note that you may need to be logged in to the TARI forum to download the software.

[wms291]

With a LGT should I see positive or negative value for IAM? At idle I have
-15.98 at point OXFF2688.

[edmundu]

With a LGT should I see positive or negative value for IAM? At idle I have
-15.98 at point OXFF2688.

Not the right address! You should be seeing a max value = 1 If you do a reset, it will start at 0.5, and then should jump up to 0.7 rather quickly, then after hitting boost for a few seconds, it should max at 1

What is EcuExplorer reading your ECU version? Try FF267C, this one works for mine.

[wms291]

Another thanks to edmundu. I'll check the other addresses in the morning and try the reset.

[KGreb]

The addresses for load and IAM vary per ECU type. The ECU type will be listed in the left pane of ECU Explorer when connected. This is also printed on the label on your ECU case, but may be changed if you are reflashed.

AJ17A: IAM = 0xFF2688, load = 0xFF50B0 early '05 LGT
AJ17B: IAM = 0xFF267C, load = 0xFF50B0 late '05 LGT
AJ17C: ??? anti stuttering reflash TSB for '05 LGT

[wms291]

267C worked for me.

[edmundu]

267C worked for me.

Nice! Now go log some data and report back! I like to see MAF grams/s values, besides the usual suspects.

[wms291]

I have to borrow a laptop from work but a least I can always load the program there. This hopefully will lead to some map sharing. That's why I snagged the laptop. Another member got a tune from the same tuner I used and got 20 ft-lbs more. So I got the map and logged it. Knock, AFR, IAM and boost all look good. I also monitored EGT but they were a constant value. Then it kicked in. I forgot I pulled the probe.:icon_bigg

[PhilT]

Map Sharing, I like the sound of that ;)

[f1anatic]

How do you log these

Dynamic Advance and Dynamic Advance Multiplier

Thanks.

[KGreb]

Dynamic advance multiplier is the updated name for IAM (ignition advance multiplier) on the 2004+ ECUs. Not sure what you are seeing defined as dynamic advance but you can log total ignition advance as well as knock correction which should give a good picture of timing.

[SeeeeeYa]

Time has passed, and I have finally logged some data. After getting the Belkin USB to serial cable driver software installed, installing the latest ecuExplorer software, securing my AP cable with duct tape and my Vaio with the seatbelt I set off to log some data. Success. However, because I wanted to compare my data with results from others I found no way to use the .pdf files everyone uses to share their data here. Simply renaming .pdf files to .csv, obviously, doesn't work. And, file converters do not work because, it seems to me, the files were altered by the initial csv to pdf conversion therefore, etc.

Where am I going wrong here. I'd like to both share some of my logs as well as compare data. So far I don't really like what I see but am unable to determine if it is 'normal'. Certainly, based on various information I've gleaned from our own forums as well as others I question both data values I have logged as well as my car's performance. Until I am sure the data captured is correct I cannot address the car.

I will say this: as has been reported I notice a significant increase in performance after a reset with a gradual softening of that performance over time. After reviewing my datalogs I see what I interpret as reasons why; timing being retarded. On the other hand I have looked at the raw data from pdf files on the formum and it appears my results are similar????!

[rodan]

I think you can post your logs as .csv files here and everyone will be able to read them.

[lookslikeanevo]

with the usb-obd adapter, wouldnt you be able to reflash the stock ECU witht he right program? sorry i didnt read thorugh all the posts

[KGreb]

There are some alpha stage programs available for the Tactrix cable that support flashing of the older '02-'05 2.0L WRX ecus. Check out openecu.org for more info. The 2.5L STI/FXT/LGT ecus are planned for future development.

[lookslikeanevo]

^ic Thanks...would be another good option from the AP

[rallispec]

with the usb-obd adapter, wouldnt you be able to reflash the stock ECU witht he right program? sorry i didnt read thorugh all the posts

yes, like Kgreb said, it's all either in development or beta stages now though.

[lookslikeanevo]

so is the 1.2 a direct obdII to usb? and man it would really be sick if

[KGreb]

The openport cables have an OBD-2 hood on one side and a USB plug on the other. Very compact compared to some other solutions.

[scans007]

All set up with new ecuExploer, hooked up the laptop......seems like not all the logging options are in there like the old ones....maybe i'm missing something, still gotta play....Wheres the dynamic advance stuff, ect...am I blind

http://www.pimpmyauto.com/Data/ecuExplorer_params.gif

Try'n to log
Engine Speed - RPM
Manifold Absolute pressure - PSI
Ignition timing
dynamic advance
fuel learing
fuel trims
TPS

I dont know all the short hand yet :D

EDIT: With a lil help Got all my answers, I'll post them here incase anyone else ever wonders
Engine Speed - RPM
Manifold Absolute pressure - PSI
Ignition timing - umm yeah
dynamic advance - Knock correction
fuel learing - Air fuel correction #1
fuel trims - Air Fuel learning #1
TPS - Accelerator opening angle

[KGreb]

Dynamic advance multiplier and engine load are under the "User-Defined Data Items" section in the left pane. Once you select them, they will appear with the other items in the main pane.

BTW, you probably want to look at manifold relative pressure (ie boost), not absolute pressure (boost+atmospheric pressure).

[scans007]

BTW, you probably want to look at manifold relative pressure (ie boost), not absolute pressure (boost+atmospheric pressure).

awww but I like running 33.8psi......:lol: :lol: :lol: Good call, when I got home and looked at the logs I was like WTF......:icon_tong

Run 1 a flop....take 2 soon....

[joeb-z]

Dynamic advance multiplier and engine load are under the "User-Defined Data Items" section in the left pane. Once you select them, they will appear with the other items in the main pane.

BTW, you probably want to look at manifold relative pressure (ie boost), not absolute pressure (boost+atmospheric pressure).

What do all the various engine load #s give you when you select them? Or can anyone point me to the engine load documentation?

[PhilT]

All set up with new ecuExploer, hooked up the laptop......seems like not all the logging options are in there like the old ones....maybe i'm missing something, still gotta play....Wheres the dynamic advance stuff, ect...am I blind



Try'n to log
Engine Speed - RPM
Manifold Absolute pressure - PSI
Ignition timing
dynamic advance
fuel learing
fuel trims
TPS

I dont know all the short hand yet :D

EDIT: With a lil help Got all my answers, I'll post them here incase anyone else ever wonders
Engine Speed - RPM
Manifold Absolute pressure - PSI
Ignition timing - DBTDC
dynamic advance - Knock correction
fuel learing - Air fuel correction #1
fuel trims - Air Fuel learning #1
TPS - Accelerator opening angle

:)

[KGreb]

What do all the various engine load #s give you when you select them? Or can anyone point me to the engine load documentation?
Load is apparently calculated in grams of air per cylinder. It is used as one of the axis in many tuning/remapping programs. Load can also be used to estimate torque, just as MAF can be used to estimate horsepower. PDX posted a good example with charts and logs when they tried an 18G turbo on the LGT.

[mccorry]

Great thread! Thanks for all the pointers... just ran my first logs EVER tonight!

[scans007]

Me too, and I have some serious neg knock, I'm freak'n out.....time to talk to the big boys.....I don't know enough :D

[PhilT]

Me too, and I have some serious neg knock, I'm freak'n out.....time to talk to the big boys.....I don't know enough :D

Have you got a Perrin or other type of intake on there ? That'll cause it.

[scans007]

I do, I have cobb's WRX one with a perrin sleeve (Closest to stock air flow you can get). But it was tuned for it....so the neg knock that hight shouldn't be there...... correct?

Pic: http://www.pimpmyauto.com/Pictures/Cobb_CAI/Large/DSC02925.JPG (didn't post pic cuz didn't want clutter ;))

[PhilT]

I do, I have cobb's WRX one with a perrin sleeve (Closest to stock air flow you can get). But it was tuned for it....so the neg knock that hight shouldn't be there...... correct?

Pic: http://www.pimpmyauto.com/Pictures/Cobb_CAI/Large/DSC02925.JPG (didn't post pic cuz didn't want clutter ;))

It shouldn't be there agreed, but I had a the same results although mine wasn't tuned.

Try putting the stock intake back on and taking a log, that will tell you if that's the cause.

[scans007]

Try putting the stock intake back on and taking a log, that will tell you if that's the cause.

Impossible for me......I have an FMIC setup!(http://www.pimpmyauto.com/pic_fmic.htm)

Time for a new tune.......sigh

[PhilT]

Whoops, I should have noticed that, looks nice. How bad is the Neg KC ?

Would you be able to take logs using the Tari logger while you are on the dyno ?

[scans007]

Whoops, I should have noticed that, looks nice. How bad is the Neg KC ?

Would you be able to take logs using the Tari logger while you are on the dyno ?

I just set up tari's ecuExplorer the other day, so no I couldn't. Just the tuners loggings and stuff, you'd think that they would've been seen this.....Neg KC runs in blocks of -4's -5's, -7's

http://www.pimpmyauto.com/Data/Clip1.gif

[edmundu]

I just set up tari's ecuExplorer the other day, so no I couldn't. Just the tuners loggings and stuff, you'd think that they would've been seen this.....Neg KC runs in blocks of -4's -5's, -7's

http://www.pimpmyauto.com/Data/Clip1.gif


Scans,

The glimpse of the log you showed, also explains WHY you had -KC values! You were not at WOT, as shown by the throttle opening values of 21%-12%. In fact you were letting off the throttle, so under light throttle and certainly when you let off, you should expect to see major advanced timing in the 30's-40's, along with negative KC values!

Without showing us some WOT pulls, you honestly cannot accurately ascertain the current state of your tune. So show us some more logs! Or if you don't want to post them, you can pm me.

[scans007]

Yeah I know, but still -7 is nothing to be happy about....even if I was off the acc. :D

I know it's way less dangerous by talk'n to the tuner........I didn't wanna post the whole log due to the fact that it's really giving away his trade secrets and stuff, just be'n respectful to his wishes...if he allows me to post them at somepoint I will.....

[LEGGTLTD]

For ECU Explorer do you configuer the Comm settings once you connect it to the car? I just download it last night and it doesn't seem that you can change the Comm settings. So I'm assuming once I connect it to the car it will either simply establish the connection or I will then be able to change the settings. I'll be using a USB to Serial cable if that matters.

[KGreb]

LEGGTLTD, with the current version I can change the comm settings (timings) while disconnected from a vehicle. It's under Options->Configure Comm Settings. If you are referrring to changing a specific COM port to be used, that is autodetected on startup. Just select the correct COM port listed in the bottom left hand pane.

[LEGGTLTD]

LEGGTLTD, with the current version I can change the comm settings (timings) while disconnected from a vehicle. It's under Options->Configure Comm Settings. If you are referrring to changing a specific COM port to be used, that is autodetected on startup. Just select the correct COM port listed in the bottom left hand pane.

Yeah I'm actually talking about setting the Comm port.
In the lower left hand pane it only listed one and it displayed nto available or some similar message. Hopefully it will allow me to change it once I actually connect it to the car

[KGreb]

Yeah I'm actually talking about setting the Comm port.
In the lower left hand pane it only listed one and it displayed nto available or some similar message. Hopefully it will allow me to change it once I actually connect it to the car
Some USB->serial adapters don't actually show up as a COM port to Windows until a USB device is plugged in. Try doing this before starting the program so that it can autodetect COMs properly on startup.

[LEGGTLTD]

Some USB->serial adapters don't actually show up as a COM port to Windows until a USB device is plugged in. Try doing this before starting the program so that it can autodetect COMs properly on startup.

Okay i'll try that.
Thanks for the help

[RangerMan]

Would this cable work? The schematic is included and it is only $30.

http://www.intrepidcs.com/ValueCAN/obdIICable.htm

I searched and didn't this product.

[KGreb]

Would this cable work? The schematic is included and it is only $30.

http://www.intrepidcs.com/ValueCAN/obdIICable.htm

I searched and didn't this product.
I don't think that will work. What you've linked is really a cable for reading CAN protocol off an OBD-2 physical interface. Take a look at this link http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?virboard=ecuexplorerabout;num=1128666075 for a list of cables known to work. At $80, the Tactrix cable is still the cheapest option that allows datalogging and provides the right voltage for future reprogramming.

[RangerMan]

Oh okay - I thought that cable was a ODB2 to Serial. Thanks for clarifying. I guess $80 really isn't that bad considering the software is freeware.

[LEGGTLTD]

Okay now i'm getting the message Accessport comm. failed (code ox5b4)
I have tried using the othe USB port with the same result. I am also specifying the correct comm port for each usb port per the device manager. Anyone have any ideas? That code means another progrm is trying to access that port. Is there a way to identify what program is accessing it? I don't have anything else connected.

[LEGGTLTD]

Please disregard my last post. I found the anser by searching. Go figure. Seems rather backward to me to have to flash the car before updating the AP with maps. Oh well. I will 'Marry' the AP to the car tomorrow. Then hopefully I'll be good to go

[scans007]

Some USB->serial adapters don't actually show up as a COM port to Windows until a USB device is plugged in. Try doing this before starting the program so that it can autodetect COMs properly on startup.

Yes that's what mine does, it won't see it until you plug in the USB -> Serial......works like a charm after you set it up once.......

[eL GaTo]

I am new at this. I attempted to do some logging with ECU Explorer. Everything seems to be working. Capture was okay. Turned on the defog switch a few times but none was saved. Where did I go wrong?:confused:

Will appreciate any input.

[scans007]

What did you exactly use? More detials on what you tried?

1) Connect AP to your computer howerever
2) Did EcuExplorer show that your car was connected ?(when you connect it changes from "disconnected" to showing "My Legacy........................." (Key has to be on 2 clicks forward or engine running)
3) Select your parameters
4) before you go anywhere, change your log directory so you know where they are go'n
5) Hit the "Insert" key on your keyboard look in the start bar at Tari's handle it should now show "Logging" Hit the "instert" key to stop it....(this will show that logging is work'n)
6) Check to see a log has created
7) Do the same, but now turn on the defogger option in the software. Hit the Rear Defogger button, look at the start bar on CPU, it should say "logging" hit the RD again it it will stop logging and save the logs.....I only use this when I am start'n and stop'n logs when moving, much safer ;)

[edmundu]

Please disregard my last post. I found the anser by searching. Go figure. Seems rather backward to me to have to flash the car before updating the AP with maps. Oh well. I will 'Marry' the AP to the car tomorrow. Then hopefully I'll be good to go

Actually you don't have to "Marry" the AP first! There is a documented procedure for bypassing this. Search the board for the exact process. But it is something like:

1. Connect AP to PC
2. Keep power unplugged to AP
3. Hold the AP's UP/Down arrows simultaneously
4. Power up the AP
5. Hold the arrows until the menu screen appears, which will allow you to choose "sync to pc"
6. Then offload the outdated maps, and replace with the new ones.

[LEGGTLTD]

Ahh. I didn'yt know that. Oh well. I'm going to marry it during my lunch break today. But thanks for the info

~Will

[eL GaTo]

Scans..........it was a "first timer error". I was looking for the log files in the ECU Explorer directory but it was saving the log files in my C: drive instead. I am going to have to change the logging folder. Thanks.

[aldouse]

Out of curiousity, would the Data Logger's work on the 2.5i NA engine as well? i know that a lot of values will be omitted or show up as errors such as boost and wat not, but it would still work though rite?

[melayout]

Should still work.

[2006Specb122]

New to data logging....

Great walkthrough by the way...
Can we go back to the basics for just one minute...

When do you data log? What is it used for? Is the car running? Driving?

thanks

[scans007]

You data log when you want to verify/see what your engine is really do'n.....it's used to log all sorts of parameters.......time to read up ;)

The car needs to be running to log :D

[2006Specb122]

I would assume it needs to be logged :)

but do you drive it idle it... run it hard...

don't you want to see what it is doing through a full run through the gears....

isn't this what you do when you have a tune... that should all be logged then right?

[rallispec]

for the most part -- i'd say that generally you want to log durring WOT, you can log anytime, (sitting in your driveway, for example) - but it's not going to give you as good a representation of whats going on as you get at WOT.



I log for no reason at all, other than to have a baseline of data collected for future reference.

Some people log before and after modifactions, to see what changes have happened... When you log is really up to you, depending on what you want to use the data for.

[sandwood]

So people say that logging in 3rd or 4th is better - why is that?

[edmundu]

So people say that logging in 3rd or 4th is better - why is that?


1. Hit target boost
2. Higher load achieved
3. Slower rev rate, which more accurately depicts the current conditions to the ECU. Which lets you see what the ECU is trying to do. Also stabilizes the readings
4. More fun!:icon_mrgr

[sandwood]

2 things I don't really understand from the ecuExplorer manual:
1. it says it does not support drive-by-wire ECUs...?
2. how does logging of the digital data in the lower window work? I don't get logging e.g. the wiper switch or whatever.

someone help me out. This is an amazing program though - incredible to be able to get this for free. I'm going to try a few more logs in the next couple of weekends.

[scans007]

Well I know I use running it through the defogger switch. I do this because then you can just hit the rear defog button to start and stop the logging without having to look at the laptop :D

When I do pulls I do:
1) Street 1 - 4 Stop logs
2) Highway - 3rd gear from 2k - redline - stop the log
3) Highway - 5th gear cruise then pull - stop the log
4) Highway - 3 - 5th hard pull - stop the log

ECT.......so I'm always stop'n and start'n the logs, makes it nice not to have to look at the laptop.....that's just me though :D

[sandwood]

yeah, I get the defog switch, I just don't understand what the digital data options mean. I definitely will try 3rd and 4th pulls.

[edmundu]

2 things I don't really understand from the ecuExplorer manual:
1. it says it does not support drive-by-wire ECUs...?
2. how does logging of the digital data in the lower window work? I don't get logging e.g. the wiper switch or whatever.

someone help me out. This is an amazing program though - incredible to be able to get this for free. I'm going to try a few more logs in the next couple of weekends.

1. This pertains to the ability to directly manipulate the ECU tables! Ala Ecutek or Protuner. This will soon be a reality for the DBW ecu's.

2. Logging of digital data I believe is useful for troubleshooting the can bus, or components on it.(It also was needed to monitor the rear defog switch for starting/stopping log recording).

[sandwood]

ah! thanks edmundu. nice to know we might be able to monitor current/future electrical gremlins as well.

[legacy2005]

just bought a laptop to do some logging and possibily get the ST. was wondering if i can use the rear O2 bung (right before the cat in the midpipe) as a wideband with out throwing a cell?

i want to use the rear O2 since i went with the crucial dp so i dont have a wideband bung right after the turbo. i figure it would be ok to do but wanted to check before i lay out the cash for a wideband and ST.

[edmundu]

just bought a laptop to do some logging and possibily get the ST. was wondering if i can use the rear O2 bung (right before the cat in the midpipe) as a wideband with out throwing a cell?

i want to use the rear O2 since i went with the crucial dp so i dont have a wideband bung right after the turbo. i figure it would be ok to do but wanted to check before i lay out the cash for a wideband and ST.

Yeah, you can use that location. But you will have a temporary CEL, until you replace your oem O2 sensor after tuning.

Just a thought, why not have a bung welded onto the DP? Probably would be under $40.

[legacy2005]

no one in the local area can do it. and dont really want someone to drill into the heat coating and mess it up.

i thought the AP got rid of the rear o2 sensor code.

[edmundu]

no one in the local area can do it. and dont really want someone to drill into the heat coating and mess it up.

i thought the AP got rid of the rear o2 sensor code.

It defeats certain codes that can be triggered by the rear O2. Like the 0410 cat efficiency. But also with that off, it triggers P2096 lean bank one, when it doesn't sniff enough exhaust. So I would say that the ECU will trigger a missing sensor cel.

But you shouldn't be running around with the wideband in there all the time, so it would only be a temporary CEL.

[legacy2005]

hmm..might have to throw the car on a lift and see if it does throw it. might have to get an o2 simulator, since i had wanted to put the wideband in and just leave it in. since i wanna datalog and use ST, with out having to lift the car up and down everytime i wanna do it.

[merlin]

Is it possible to use ecuexplorer to create a back up of the factory map. I just ordered an AP and would like to have a copy of the original.

[PhilT]

Is it possible to use ecuexplorer to create a back up of the factory map. I just ordered an AP and would like to have a copy of the original.

The stock map is saved to the AP when you marry it up, so when you un-marry it, it goes back on.

[edmundu]

The stock map is saved to the AP when you marry it up, so when you un-marry it, it goes back on.


Not TRUE! The AP comes with A factory map, but it is not guruanteed to be the exact revision you car came with.

The next generation AP will have this ability, but the current release does not.

I don't believe there is support yet for DBW ECU's? Try the Tari boards, and Calvin will tell you definitively.

[PhilT]

Not TRUE! The AP comes with A factory map, but it is not guruanteed to be the exact revision you car came with.

The next generation AP will have this ability, but the current release does not.

I don't believe there is support yet for DBW ECU's? Try the Tari boards, and Calvin will tell you definitively.

Oh, my mistake, I thought that's why it took so long to marry it up first time as it had to download a map, and then upload one.

[KGreb]

I don't believe there is support yet for DBW ECU's? Try the Tari boards, and Calvin will tell you definitively.
Colby on the openecu.org boards has been able to download the firmware from an AJ17A LGT ECU. Cleaned up software should be available in the near future to back up your firmware with the Tactrix cable.

[zildjiank]

How do I aquire the logs that I compiled? I recorded with the program, but now I'm not sure where or how to get the log that I just recorded...

[mccorry]

It should be under the c:\program files\TARI Racing\My Programs directory.

[zildjiank]

And, how do I get to that? Sorry, i'm not very computer savvy...

[scans007]

^Open up windows explorer (folder browsing) then click on c:\ and browse.....

Or even better read the tari help, and set the path for your logs to be saved on your desktop that way you won't have to go look'n for them.....(id tell you but I forget where off the top of my head)

[TRS]

How do I aquire the logs that I compiled? I recorded with the program, but now I'm not sure where or how to get the log that I just recorded...
When logging, the ecuExplorer puts the files on C: by default so each log should be there as a CSV file with a name that looks something like [AJ18A-6824] 25-02-2006 16h23m21s.

You can just click on the file to see it in its raw comma delineated form (use Start, click My Computer, then Local Disk (C:) any you will see the file names. To view the data in a nice column and row format start ecuExplorer, click File then Open Log File, and then click on the desired ecuExplorer file. This file name should now be seen in the menu in the upper left side of ecuExplorer under Saved Log Files. Click on that file name and your logged data will be displayed in tabular format

You can view your logged data in graph form by using Delta Dash Demo available at http://www.ecutek.com/downloads/DDDemo.zip.

[zildjiank]

Dang, I followed ya all the way up to the local disk C, found that, and now there's no ecuExplorer folder or program under the local disk C to go to...

Thanks for the help, maybe I downloaded it wrong, I don't know...

[mccorry]

Try the path I listed above.... and see if it is there....

Are you using ECUExplorer or DL1 to datalog?

[TRS]

Dang, I followed ya all the way up to the local disk C, found that, and now there's no ecuExplorer folder or program under the local disk C to go to...

Thanks for the help, maybe I downloaded it wrong, I don't know...
Try this:

Click start, then click Search. Select All files and folders and where it says "all or part of the file name:" type in ecuexplorer and hit enter. If any logging files were created they should show up and have CSV File listed under the Type column.

[zildjiank]

Try the path I listed above.... and see if it is there....

Are you using ECUExplorer or DL1 to datalog?
It says DL1...

AWD, I searched for ecuExplorer, no go...

[SeeeeeYa]

Go here:
http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?board=ecuExplorer_LatestReleases
Get v3.0.25

Then go here:
http://www.ecutek.com.au/default.htm
Get the DeltaDash demo

Reread this thread from the beginning.

Go open your eyes, your mind, and have fun.

[Beanboy]

N00b alert!

How would logging a 2nd gear pull from 2000RPM to redline with the car fully loaded compare to a 3rd gear pull?

Need to drive forty minutes or so to find a road with at least a 65mph speed limit...

Logs/graphs to be posted by mid-week...woohoo!


-B

[SpeedNeeder]

I 'think' the idea of a 3rd pull being better is that things happen slower, so you can log them more accurately. Unfortunately, 3rd gets you over 80mph doesn't it? I can see where that could be a problem depending on where you live.

A couple of questions of my own:
Can you data log without an AP?
Is there a cheaper cable you can use than $80? I'm not worried about flashing my own ecu, just would be fun to run some logs.
I will probably get an AP one day.

[joeb-z]

[quote=SpeedNeeder]I 'think' the idea of a 3rd pull being better is that things happen slower, so you can log them more accurately. Unfortunately, 3rd gets you over 80mph doesn't it? I can see where that could be a problem depending on where you live.


Long little used exit ramps on Interstates FTW. No cops hanging out there.

[joeb-z]

[quote=SpeedNeeder]I 'think' the idea of a 3rd pull being better is that things happen slower, so you can log them more accurately. Unfortunately, 3rd gets you over 80mph doesn't it? I can see where that could be a problem depending on where you live.


Long little used exit ramps on Interstates FTW. No cops hanging out there.

Aargh- meant entrance ramps of course.

[SeeeeeYa]

beanboy, isn't there a nice hill on rt9 out in Wellesley?

[LittleBlueGT]

If anybody can help me that would be awesome.

I have a (cheap $15) serial cable - USB cable plugged into my AP cable plugged into my laptop. I open up the tari-logger, but it always displays disconnected.

When I plug in my USB cable (connected to the car through the AP cable) I get the computer saying it found new hardware, but it prompts me to look for a driver.

Don't know how to get a driver for it, or really what I should do to get things going.

[SpeedNeeder]

If anybody can help me that would be awesome.

I have a (cheap $15) serial cable - USB cable plugged into my AP cable plugged into my laptop. I open up the tari-logger, but it always displays disconnected.

When I plug in my USB cable (connected to the car through the AP cable) I get the computer saying it found new hardware, but it prompts me to look for a driver.

Don't know how to get a driver for it, or really what I should do to get things going.

Go to the Tari website, look under the OBD forum, there is info there about drivers.

[LittleBlueGT]

As we speak, thanks.

[LittleBlueGT]

Still can't figure this stuff out.

I'm not computer illiterate, just need a littl ebit of help to get my COM port working with my cable.

If anybody has time this afternoon to troubleshoot this thing with me (on-line or over phone) that would be awesome.

I promise when I get data-logging I will post my results.

[LittleBlueGT]

OK finally got it working, the USB to serial adapter just didn't work.

Got a PCMI - serial adapter and it works.

[MarcusDubya77]

all my laptop has is a 15 pin connector, aside from the usual collection of USB ports..how am I supposed to log data if the connecter to the OBDII cable is a 9 pin??

[legacy2005]

you have to buy a serial to usb converter cable. i know best buy and circut city carry them, and i think radio shack does as well.

[LittleBlueGT]

My USB to serial adapter did not work.

[legacy2005]

My USB to serial adapter did not work.

it should of. did you install the software for the serial/usb adapter? and did you recalabrate the datalogging software to look for it on the differant COMM?

[LittleBlueGT]

it should of. did you install the software for the serial/usb adapter? and did you recalabrate the datalogging software to look for it on the differant COMM?

Yes, yes, yes, played around for 6 hrs on it.

Some computer expert that I talked to said some hardware configs like what I was doing just don't work.

My PCMI to serial connection works though.

[specinvstr]

Great post. Can I use this on my bro's WRX too?

[edmundu]

Great post. Can I use this on my bro's WRX too?

Yes! It was designed with Subaru's in mind...

[TSi+WRX]

OK, read the thread through from beginning to end. :icon_bigg

Please pardon my ignorance, but let me start off with a very simple question.....

WHAT YOU WILL NEED

1)A laptop with a serial port, or
2)A USB to serial adapter (or PCMCIA to serial adapter)
3)OBD to Serial cable. I have been using the cable supplied with my Cobb AccessPort. Other cables are available for sale at http://www.tactrix.com/ (http://www.tactrix.com/)


1) - check. :)

It's the next three that's got me going ---> :confused:

So I go to the tactrix page, and click on the OpenPort 1.2 cable. Looks like the right thing to buy. Supports the Tari ECU Explorer, supports my vehicles.

http://www.tactrix.com/product_info.php?products_id=31

So, this is a OBD-II to USB cable, right?

With this cable, would I still need the various serial-port adapters?

In other words, am I missing something, and that I cannot use this cable DIRECT to my computer's USB ports? I need to instead configure:

computer -> serial port -> serial-to-USB cable -> OpenPort 1.2 -> vehicle OBD-II

Or am I simply misunderstanding what brothe rallispec wrote, and instead, that this simple OpenPort 1.2 cable will allow me direct link between my laptop's USB port to the vehicle's OBD-II for logging?

Please help...somewhat very confused! :oops:

[lookslikeanevo]

^wont need the serial port adapter

Computer -> usb port -> openport 1.2 -> OBD II

Openport is all that you will need

[TSi+WRX]

^ Ah! Thanks, bruddah! :D

Yet once again, READING > ALLEN! :)

[bluechipbmw]

Can these cables be bought at a local store such as staples, or circuit city? Or just online? Thanks

[SpeedNeeder]

Can these cables be bought at a local store such as staples, or circuit city? Or just online? Thanks

I haven't found one. There are some engine code reading things at auto parts stores that have obdii cables, some of them are permanently attached and some appear to be a standard serial cable connection. If you find one somewhere, let me know, I just can't spend $80 on a cable. I guess I'm cheap.

I just want to log, I don't want to flash my ecu.

[2006Specb122]

Hey guys.... I'm new to logging. Wanted to get started. Read the first 5 pages then skipped to the end.

How to the professional tuners log data?

They must do it differently. With all the parameters to choose from it would be time consuming to only do 10 at a time and try to get a view of everything.

And so what if I am doing an E-Tune with a tuner from accross the country. How can I send him my data logging if I can only do a few parameters at a time.

Thanks

[TSi+WRX]

And so what if I am doing an E-Tune with a tuner from accross the country. How can I send him my data logging if I can only do a few parameters at a time.


^ Talk to the tuner - they should tell you which parameters they MUST have, and which would be "nice to have, also." :)

-------------


All-right, I am some kinda stupid.... :redface:

Currently trying to get my TacTrix OpenPort 1.2 USB-to-OBD cable to work. Downloaded the necessary drivers, still no-go. Just finished re-installing the Tari DL1 software on my wifey's laptop and running through all the update files - let's see if this gets me anywhere tonight.

Any tips/guidance would be appreciated! :D

[Beanboy]

So, can we get some common things to look for in the log?

For example, I saw a -2 KC...after letting off a WOT run. Did some searching and found out it is common and okay for a -2 or -3 KC to appear, along with ignition timing in the 40s (which it was).

Anything else like this that folks know?

Here's one, what is an okay range for A/F Correction #1 and is there anything to look for if there is a big jump in the %? Got some -14% to-18% just as revs come up and clutch engages. KC is 0 or 1, and ignition timing jumps from high teens into the 30s as car starts moving.

[TSi+WRX]

^All-right, I am some kinda stupid.... :redface:

Currently trying to get my TacTrix OpenPort 1.2 USB-to-OBD cable to work. Downloaded the necessary drivers, still no-go. Just finished re-installing the Tari DL1 software on my wifey's laptop and running through all the update files - let's see if this gets me anywhere tonight.


Ah...stuipd me! :redface: Using ecuExplorer did the trick! ;)

[rallispec]

Ah...stuipd me! :redface: Using ecuExplorer did the trick! ;)

odd that it worked with ECU explorer and not Tari.. but oh well.. that's life.

i've got the ECU explorer walk through typed up --- need to edit the original post to include it....

[TSi+WRX]

^ I know, I was most puzzled.... I almost ended up returning the cable, until I happened on a post on the Tari Forum in which another Scooby onwer was having difficulty getting DL1 to work with his late-model vehicle. Another poster cited that DL1 was dated software, and that he should in-turn try ecuExplorer.

So, I thought, why the heck not!

And BINGO! :D

----

BTW, thanks a ton for your walk-through! :) It really got me going on this whole thing!

[j255c]

i cant get it to save a second datalog. The first one worked just fine, but i did more interesting log w/ knock timing and a/f ratios and it said it recorded but no spreadsheet was in my folder :(.

[zildjiank]

^Exactly! mine records, but then I don't know where to recover the data...

[rallispec]

^Exactly! mine records, but then I don't know where to recover the data...

it should record back to a file stored in whatever folder you installed the program in.

[TSi+WRX]

With ecuExplorer, you can also delineate, specifically, where the log files get "put."

I believe that this is an option that only becomes available when ecuExplorer is connected to your ECU, though.

[eL GaTo]

[quote=SpeedNeeder]I 'think' the idea of a 3rd pull being better is that things happen slower, so you can log them more accurately. Unfortunately, 3rd gets you over 80mph doesn't it? I can see where that could be a problem depending on where you live.


Long little used exit ramps on Interstates FTW. No cops hanging out there.

It's funny you brought this up. I have done a few logs for TDC to look at and Jon was wondering why I did not do WOT runs.

I was just too chicken :lol::lol::lol::lol: to do it cuz I would be flying around 80MPH before I'd hit WOT.:icon_wink

[TSi+WRX]

^ I know the feeling, bro! :lol:

My nightmare scenario is that I come just tearing like a bat-out-of-hell "up" an on-ramp (and yes, I have a few favorite uphill ramps near me, thank Heavens), and an enforcer comes roaring up ( well, he'll probably have to do a little "catching up," himself ;) ) from behind, already on the highway.

Gotta pay to play, right? :D

[lookslikeanevo]

in sure it cant be that hard to find a few secluded roads, to do WOT pulls, hell if i can find them in socal, you should be able to find them anywhere

edit: maybe not NY

[SpeedNeeder]

How come this thread isn't stickied any more?

[subastyle]

So when i get my accessport i should come here to figure it out?? i will be ready for stg2 right off

[schwinn]

Just wanted to post some more information about USB-to-serial adapters.

Upon reading about the Tactrix cable, I noticed that OSX uses an FTDI driver for their USB cable. Obviously, this means they use an FTDI chipset in their cable to handle the serial comms of the OBD interface.

So, I did a quick froogle search, and found this cable at a decent price: ByteRunner.com Store Product Listing (http://www.byterunner.com/byterunner/product_name=USB-COM-CBL)

I performed my first datalogging this weekend, and can say that it works well with my Cobb Accessport cable. The AP cable and USB connection generated 10-parameters of data at about 100ms log data-rate using ECU Explorer...

In other words, it seems to work great!

[zildjiank]

How come this thread isn't stickied any more?

Was wondering that myself...

Okay, so I tried ECUexplorer tonight, and man it was a pain...
In the end, it never recorded any data, just took down what parameters I had set up for the log, but didn't collect the data...

Finally, when I got it to give me the parameters, I set all of them, and it took down some readings as to what they were realtime. But after those first initial readings, it never updated them, or I couldn't see it changing in real time as I was driving...should it be?
Anyway I rightclicked on the defroster on/off thing b/c the defrost button wasn't doing it, So I clicked it to "start logging"...then at the top it would say, logging such and such a file, then when I was done I clicked it to stop, and it stoped...

However, when I went to view the file in Excel, I could find the file that I "recorded" and all the parameters were listed as headings, but NOTHING was posted under those headings, and I did this like 5 separate times until I gave up...any ideas?

[edmundu]

Let's start with your comm port setup:

Is it a straight serial connection? Or is a usb>serial converter involved? Or are you using the OpenEcu cable?

Next, you selected all the available params, under analog section? Wow, I have never tried that, but I do know that you log sampling rate would have to be pretty slow. I generally try to keep the params checked to a minimum, perhaps no more than 10-12 max! I usually will do between 8-9.

If you do have a USB>serial converter, you will need to lower the port speed settings in Ecuexplorer. The PDF manual tells you what the recommended settings are. I would tell you, but my laptop is in my car. If you can't find it, I'll get the settings at lunchtime, and post them here.

[zildjiank]

For the comm port setup, I used my AP connection thing to my computer (sorry, I don't know the technical term for this...)

Analog section, sorry, correction: I set all that I was asked to by TDC...so, like 8 maybe...
Basically, it was telling me it was logging, and saving the files, but there was no data in those files, because it wasn't logging...

[edmundu]

For the comm port setup, I used my AP connection thing to my computer (sorry, I don't know the technical term for this...)

Analog section, sorry, correction: I set all that I was asked to by TDC...so, like 8 maybe...
Basically, it was telling me it was logging, and saving the files, but there was no data in those files, because it wasn't logging...

Sounds like a bad install of Ecuexplorer, I think it maybe missing some files. Try reinstalling, but first wipe out the currently installed one, including directories.

[caramall2]

1) Software: I just loaded and successfully used tonight (Ecuexplorer, Cobb AP cable, laptop).
-- If you got any realtime readings, your connections are ok (even if it stopped reading at a point)
-- If you pick TOO MANY parameters it stops reading realtime, hence nothing is filled in your table (I did that too the first time).
-- Sit in the driveway with the car running, click on the real time view, and select and deselect parameters until it shows you realtime updates without any freeze-ups.
-- Next, hit the INSERT key on your computer--you should see a file name above the the menu bar at the top indicating it's logging. Rev it a few times to see some movement, then hit INSERT to stop logging. File name disappears from above the menu bar.
-- Go open the log (default is right under "C:/" I believe) and ensure it shows data. (Download the DeltaDashDemo from Ekutek and you can open the log graphically--a nice way to view things (download the demo, not the regular program).)


2) What parameters did TDC ask you to log? Curious.

[zildjiank]

Problem solved...
Apparently, I needed to have the right things inserted into the Comm Settings Department...If you have trouble reading things, and stuff is freezing up, TDC told me to set the following under the Options-Comm Settings:
XonLim = 2048
XoffLim = 2048
ReadIntervalTimeout = 500
ReadTotalTimeoutConstant = 1000
WriteTotalTimeoutConstant = 5000

I had like 7 parameters for realtime chosen, and it read them and logged them, however, when I selected RPMs, it would freeze them all and stop logging...

He asked me to log these on his website:
TDC Tuning (http://www.tdctuning.com/index.php?page=logs)
I then proceeded to enter the above data, and all went well...
And off goes my log to TDC...

[Effin Ponderous]

subscribed

[abakja1]

>>>>>>>>>>>UPDATE>>>>>>>>>>>>>>>

I used COMM3 and noticed in the bottom left corner of the TARI window I have "Disconnected" showing,..Seems to be the only COMM to get any response as the rest show an unable to connect problem. Any suggestions as turning key to ON and hitting the defroster (buton next to the side mirror adjust right?) seems to do nothing and I still am not getting any grey tabs available,...
>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>>.

Need help,..I bought a serial to usb cable and it came with drivers,..dont know which to install,..

But when i run the TARI software and connect the usb to my laptop, WinXP does recognize the USB connection and the TARI software has like up to COMM9 to connect to,

However, when I have the key to ACC or ON, I try to connect from COMM1 to COMM9 and I am unable to establish a connection,..

The disc that came with my EBAY cable says that XP will automatically recognize the USB cable. So I dont know if its a driver I need to install (dont think so), or something that I dont know about in how to use the TARI software as this is my first time attempting to establish a connection/datalog.

any help appreciated
Kevin

[abakja1]

Err,..anyone,..could use some help as I put off getting the proper tune than I should have,..

No AWD dynos in Hawaii so I gotta get a map out to TDC for something safe and reliable for our weather, gas grade, and my driving style.

thanks
Kevin

[abakja1]

Ok,..downloaded ecuexplorer,..hopfully this will work,..TARI is outdated I take it then??

[caramall2]

ECU-Explorer is their latest from what I gather. Works great for logging.

[abakja1]

Tried it just a few minutes ago,..got the latest ECU Explorer download,..connected my serial to USB from my AP cable, Got no connection,..Says disconnected,...Nothing, even if ACC or on ON position,..Is it the Serial to USB cable I got off EBAY? I tried loading the drivers on the CD that came with the cable, but WINXP says I got the better loaded driver already installed. Plus I thought WINXP automatically detects teh USB cause I hear an audible "bong" when I connect,..

HELP,..this is frustrating,..
Kevin

[abakja1]

Ok,..finally got it working,..went to CompUSA and lo and behold they had the KeySpan serial to usb so I got it to see if it'll work,.

Also using the defroster doesnt seem to start log even if I select it to, so I just use the INSERT button,...Hard to see the C:/ at the top but realized I was logging when I got home,..Will do this sometime during the week as its like 230pm and hot (high 80's) now.

Im using the recommendations on TDC which has 8 parameters,..any others I should take down?

[caramall2]

Are you just trying to send TDC a log so they can tune you? If so, you should be fine with their parameters. (They had originally asked for "engine load (g)" but I couldn't find that parameter in Ecu-explorer).

[TSi+WRX]

^ It's user enabled. You'll have to activate the specific parameter that corresponds to your vehicle's ECU.

[LittleBlueGT]

So I have some time, do some logging to extrapolate 0-60 and 1/4 mile times.

What does ECU explorer use as a time unit?

A decent 0-60 mph was 12400 units, can't make any sense of that.

[LittleBlueGT]

So I have some time, do some logging to extrapolate 0-60 and 1/4 mile times.

What does ECU explorer use as a time unit?

A decent 0-60 mph was 12400 units, can't make any sense of that.

Disregard, I was using mph, and I thought I was using kph.

BTW they were:

5.0
4.9
5.1
5.1
5.0

I never nailed it, so I know there is a couple of tenths on there.

Stage2 w/ gutted OEM DP

Best 0-100 is 13.5 I think that would be pretty close to a 1/4 mile time.

[caramall2]

^ It's user enabled. You'll have to activate the specific parameter that corresponds to your vehicle's ECU.

If by that you mean it's one of the parameters you can put a check by to log, it wasn't on the list (i.e. there were something like 30 parameters to choose, none of them were engine load).

[schwinn]

What does ECU explorer use as a time unit?

A decent 0-60 mph was 12400 units, can't make any sense of that.As far as I have seen, the time units are in milliseconds, starting from the time the log begins. So, unless you started your logging exactly as you started your 0-60, you are looking at 60mph happening 12.4 seconds into your log. Look further back to see where you started the run (probably around 6-8 seconds, or 6000-8000 ms/time stamp).

My last run the other day was with the time stamps at approx 21551 and 26859, which means 5308ms, or about 5.3s... again, this depends on the sample rate, which in my case was about 190ms, which means my time is probably +/- 190ms, or +/- 0.2s...

Stage II, Crucial UP/DP, TDC ETune... so it's in the ballpark of your numbers...

My 1/4mile was 13.9 @99mph...

[LittleBlueGT]

As far as I have seen, the time units are in milliseconds, starting from the time the log begins. So, unless you started your logging exactly as you started your 0-60, you are looking at 60mph happening 12.4 seconds into your log. Look further back to see where you started the run (probably around 6-8 seconds, or 6000-8000 ms/time stamp).

My last run the other day was with the time stamps at approx 21551 and 26859, which means 5308ms, or about 5.3s... again, this depends on the sample rate, which in my case was about 190ms, which means my time is probably +/- 190ms, or +/- 0.2s...

Stage II, Crucial UP/DP, TDC ETune... so it's in the ballpark of your numbers...

My 1/4mile was 13.9 @99mph...

Yeh I understand that. I thought I was logging km/h, but it was mph.

This thread has my results:

http://www.legacygt.com/forums/showthread.php?t=44173

[TSi+WRX]

If by that you mean it's one of the parameters you can put a check by to log, it wasn't on the list (i.e. there were something like 30 parameters to choose, none of them were engine load).

Sorry, I was unclear. :redface:

It's under "User Defined" from the left-hand panel, near the top of that panel.

You'll need to find the corresponding addresses, check them off individually to match your ECU ID, and that will then enable those parameters.

You'll then again need to check-off their tick-boxes on the "Real-Time Monitoring" section (the right-hand panel) in order to visualize those parameters.

:)

[VTGT]

My friend and I are about to datalog our cars. He is a 2002 wrx does anyone know what engine load he should select? I searched on the tari website and couldn't find it.

[zmarko]

I was having a hard time finding it in this thread, but is this the link we use to DL the software? (Meaning, is this the correct version for us?)

http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1138965460

[VTGT]

can someone look at my datalogs.

[mccorry]

Where are they at? I'll look at em...

[VXCL]

tari logger didnt work on my mac book running xp, but just installed ecu expolorer and it works perfect!!! just finished logging my cobb stg2 1.16 93. maxed out at 17.8 psi and 233 g/s and no - knock correction. sweet!

[unclemat]

Guys, my car is rather thirstier than most. Let's assume this is not the driver/gas/etc problem, but genuine engine problem. Would data logging help diagonse it? I guess it should (air/fuel mixture), but I am not sure what to look for? Which parameters matter most? I am noob :lol:

I'd appreciate your suggestion very much. I know how to get the logs (have openport cable, laptop, openecu software).

Btw, I posted a thread asking for engine-related problems that can cause low gas mileage:

http://legacygt.com/forums/showthread.php?t=45185&highlight=mileage

[zmarko]

I was having a hard time finding it in this thread, but is this the link we use to DL the software? (Meaning, is this the correct version for us?)

http://www.tari.co.za/cgi-bin/yabb2/YaBB.pl?num=1138965460

Bump. :confused:

[bskey]

I am new to this too, and this thread has been helpful, but I seem to have missed the link to the correct software. The link on the original post does not work. Could someone help me out?

Thanks, Brett

[zmarko]

I am new to this too, and this thread has been helpful, but I seem to have missed the link to the correct software. The link on the original post does not work. Could someone help me out?

Thanks, Brett
First post on this page and the post right above yours has a link to the software. However, I can't verify that it's the correct version (I'm not sure IF there are even different versions out there, I can't find that info).

[edmundu]

^^ Yeah that link is good! I use that version of Ecuexplorer when I want to datalog some acceleration testing. It is not being developed any further, I don't believe, as now there other variations of it, that cost money, but also allow you to integrate wideband data.

[bskey]

Great, thanks for the confirmation. This data logging should be really helpful when comparing mods and fine tuning the car. This is the first car I have owned that offered these options. I'll have fun with it!

[Jedi Pimp]

This is good info - maybe it can be a sticky

[SpeedNeeder]

Hmm, make this thread a sticky?
Interesting idea.

[showbo]

Hey, john and joe are busy, so they can't really answer my question right now. What do i need to log, for them to make me e-tune map? Does anyone know?

[VXCL]

This is good info - maybe it can be a sticky

it used to be. dont know what happened

[edmundu]

Hey, john and joe are busy, so they can't really answer my question right now. What do i need to log, for them to make me e-tune map? Does anyone know?

http://www.legacygt.com/forums/showpost.php?p=416891&postcount=3

[showbo]

Im looking for the 06 LGT AT engine Load is? It's not the same as the 05

[showbo]

bump for the 06 Engine Load

[VTGT]

Got some more logs does anyone want to look at them?

[SpeedNeeder]

Log of running stock?
I wouldn't mine looking, but I wouldn't know enough to comment about them.

[VTGT]

tdc stage 1 5eat

[SpeedNeeder]

yeah, i would like to see

never mind, i know tdc doesn't like logs of their maps floating around

[legacy_y_tu]

Well I finally got around to do some datalogging. I'll say it was easier than I thought it would be. Definitely due to all the writeups on here. Only thing is I recorded the A/F readings in Ma it appears. I' guess I'll have to redo them to get those.

The logs look good to my inexperienced eye. I asked the tuner for a conservative tune that would work well on a road track and could still take into the mountains on a hot summer day with the car loaded with junk. With that background: Air flow is moving around 232 g/sec max. and boost peaking around 17. KC looks great too, nothing really lower than a 4 with lots of 8's and 9's. So unless I'm reading this wrong my car looks pretty happy. Anybody with more experience care to comment?

[legacy_y_tu]

Bump...anybody ^^^^^

[edmundu]

Logs look great! Plenty of DA, so the ecu is happy, and has a lot of rope for if it needs to yank timing. Strong MAf (v), very typical of Stg1, in those air temps.

Logging your AFR will be meaningless, as the factory O2 is nowhere near accurate below 12:1. All you can expect to see is it bottomed out at 11.04-11.12

[legacy_y_tu]

Logs look great! Plenty of DA, so the ecu is happy, and has a lot of rope for if it needs to yank timing. Strong MAf (v), very typical of Stg1, in those air temps.

Logging your AFR will be meaningless, as the factory O2 is nowhere near accurate below 12:1. All you can expect to see is it bottomed out at 11.04-11.12

Okay, great thanks for the feedback. I didn't know that about the factory O2. I may log the AFR again in the correct units just to make sure it's not anything crazy. I'm assuming I grabbed the correct AFR column right. There was more than one to choose from if I remember correctly.

[CasopoliS]

So did anyone with the LGT ever try putting a WB AFR 0-5 output on the fuel tank sensor wire to log with ecuExplorer????

Apparently they did this but it was on a WRX I think. The fuel level sensor is like 0.3 - 4.8 volts.... so you can log that voltage. If you tap in the 0-5 V output of the WB AFR you can log it just the same.

I looked in the LGT ECU pinout and I do not see anything about this wire though.

I am looking for a cheap easy way to log WB AFR as a function of RPM.

[zildjiank]

Logs look great! Plenty of DA, so the ecu is happy, and has a lot of rope for if it needs to yank timing. Strong MAf (v), very typical of Stg1, in those air temps.

Logging your AFR will be meaningless, as the factory O2 is nowhere near accurate below 12:1. All you can expect to see is it bottomed out at 11.04-11.12

You guys and all your tuning talk...I only wish I knew what the heck you were talking about!:icon_bigg

[lgt_nube]

Sorry if this has been answered in this long thread (I read the first and last page). My question is, does the LGT (mine's an 05) limit turbo boost based on Manifold Relative Pressure or Manifold Absolute Pressure? The difference would be felt in driving at high elevations where the Atmospheric Pressure is lower than at sea level. If the limit is based on Manifold Relative Pressure, then the Manifold Absolute Pressure (and power) would decrease with altitude. If the limit is based on Manifold Absolute Pressure, then Manifold Absolute Pressure and power should stay the same (at max boost) with increasing elevation - except for hp loss from higher air temps from more air comression, and there would be more turbo lag.

[lgt_nube]

This thread should be a sticky!

[Magic]

Done

[CasopoliS]

So did anyone with the LGT ever try putting a WB AFR 0-5 output on the fuel tank sensor wire to log with ecuExplorer????

Apparently they did this but it was on a WRX I think. The fuel level sensor is like 0.3 - 4.8 volts.... so you can log that voltage. If you tap in the 0-5 V output of the WB AFR you can log it just the same.

I looked in the LGT ECU pinout and I do not see anything about this wire though.

I am looking for a cheap easy way to log WB AFR as a function of RPM.

[MarcusDubya77]

WTF...I have been trying to use the ECU explorer software...Which is up to date and properly installed..I have all my cables plugged in..I go to my car plug in the OBD cable , turn the key 2 clicks...NOTHING!!! I see that the ECU disconnected..and I get this in the lower left..

Prolific USB-to-Serial COM Port [COM2]
Invalid Port COM0

WTF, can anyone help me???

[mickeyd2005]

Which cable and which software versions are you using?

If you're using AP V1.0 cable, did you select the correct serial port?

[MarcusDubya77]

see. I am lost I can't figure out how to selct serial ports on the ECU software..it has configure comms, but nothing that designates specific comms ports

[mickeyd2005]

Isn't there a window in the lower left quadrant with all the serial ports?

I'm at work right now, but if someone isn't able to help you by tonight or tomorrow, I'll try to do a screen capture. I normally use my tactrix cable, but I do have a Cobb V1.0 somewhere in my garage.

[MarcusDubya77]

finally got it to work!! its F-in sweet..now I just got to figure out how to record the data!!

[mickeyd2005]

Set your save subdirectory.

Then in the main variable window, right click and then choose to make your defrost button your start and stop button. This will allow you to easily start your datalog with your defrost instead of having to click on the laptop.

[The Don]

Is there a working link for the DL1 program..i cant find it on here..and the ecuexplorer isnt working for me either..im going back out to try it again

edit-- it will not connect to the ecu
Port Assigned to Port description
COM1 SSM Diagnostics Communications port

[wheatleya]

I see peoples logs with AFR's on them. I can't figure out which box to check for AFR, there is about 7 of them.

And why can't I record data? I will have to read more:)

[mickeyd2005]

Is there a working link for the DL1 program..i cant find it on here..and the ecuexplorer isnt working for me either..im going back out to try it again

edit-- it will not connect to the ecu
Port Assigned to Port description
COM1 SSM Diagnostics Communications port

Before plugging anything into the computer, make sure you have properly installed the USB->Serial drivers that came with your USB->Serial adapter. Then plug in your adapter. After the drivers are installed, plug in your AP 1.0 cable and then fire up ecuexplorer 3.0.25.

In the lower left corner, you should see the COM port that represents your USB->Serial adapter. Right click it and then select it. Exit ecuexplorer and then restart ecuexplorer.

Here is a screen shot of my ecuexplorer, my adapter is COM11. If your computer has no serial ports, it might very well be that your adapter has chosen COM1 as your USB->serial adapter.

[The Don]

Thanks Ill try this when i get outta school today.

Update..tried it still isnt connecting to the ecu.. ive uninstalled/deleted the program well over 7 times now. tried another program called enginuity that didnt work for me either...i dont really know what else to try at this point..

[NSFW]

IIRC, Enginuity will only log when the rear defogger is turned on. Been a while since I played with it though.

[rc0032]

Does anyone have a log of a stock LGT that they can send to me? Im trying to figure how to tune for tipin :)

[racerdave]

Does anyone have a log of a stock LGT that they can send to me? Im trying to figure how to tune for tipin :)

Why mess with tip-in?

Just cut and paste the STI throttle duty cycle maps into your existing map, reflash and be done... ;)

[edmundu]

Why mess with tip-in?

Just cut and paste the STI throttle duty cycle maps into your existing map, reflash and be done... ;)

He's not looking for throttle pedal adjustment. But rather actual fuel tip in, for when larger or non stock injectors are being used....

[racerdave]

He's not looking for throttle pedal adjustment. But rather actual fuel tip in, for when larger or non stock injectors are being used....

Gotcha... regardless, the STI map is a no-brainer for those of you who haven't tried it yet.

[Spec B]

Is it typical to see negative KC when lifting off the throttle? I ran some logs this evening and at full throttle the KC was positive all the way to redline. The moment I left off the gas the KC kicked in -6,-7 and then 0. I am not sure if that is typical.

I am running a TDC stage 2 map, and I know they are sensitive about posting logs of thier tunes, so I am hesitant to post it for review.

Any input would be great.

[mickeyd2005]

-kc is normal when you lift off throttle.

As edmundu explained above, you're looking for steps in your ignition timing.

[lgt_nube]

I decided to set up for logging with my 2005 LGT, but the links to the TARI RACING SOFTWARE in the first post of this thread don't work now. Rather than read through 16 pages of messages in this thread, I thought I'd ask if someone could point me to an updated page for getting that software, and/or other updated procedures if there are any. If not, I guess I'll read each message until I find ou