aziankingz Posted May 19, 2014 Share Posted May 19, 2014 (edited) Hey guys, been noticing some weird behavior from my 5EAT with 170k miles lately. In auto mode, it would never go above 3k rpm as much as I press down the pedal feeling like it hits some kind of wall and sometimes when pressing the accelerator down, the rpm would actually drop? In all cases though, the rpm loves to drop back to around 1200-1500 rpm, which makes it hard for me to maintain a good speed on the highway. I am stage 2 and recently had it tuned and the turbo seems to kick in but it isnt fun when it cant pass 3k rpm. Also in manual mode, while reaching the higher rpm (3k rpm or above) it seems very choppy and feels like it struggles. Would resetting the ECU and changing my way of driving help? Maybe i need to drive more aggressively? At lower speeds and low boost (under 2700 rpm) the car feels fine, but once it hits boost and above 3k rpm it just feels weird! Edited May 19, 2014 by aziankingz Link to comment Share on other sites More sharing options...
Rattsl Posted May 19, 2014 Share Posted May 19, 2014 On Manual mode, mine will "choke" on some gears, and really feel as if it were hesitate to get into gear, but once in gear, it's fine. Link to comment Share on other sites More sharing options...
doccrowley Posted May 19, 2014 Share Posted May 19, 2014 Are you running an OEM recirculation valve on this stage II set-up? My car used to fluctuate with what the 'tuners' called " waste gate flutter". In all actuality it was the recirculation valve bleeding boost pressure that it couldn't hold. It made for some weird boost issues until I upgraded to the FORGE recirculation valve. Once I upgraded turbos I then ran the Forge valve with the stiffest spring they included and used the additional 2 spacers (or shims) to make it as stiff as possible. I ran that set-up even when the boost was reduced to a 15psi tune for all daily driving. Maybe that is an issue? If not, go back to your tuner and make sure all is well. Hey guys, been noticing some weird behavior from my 5EAT with 170k miles lately. In auto mode, it would never go above 3k rpm as much as I press down the pedal feeling like it hits some kind of wall and sometimes when pressing the accelerator down, the rpm would actually drop? In all cases though, the rpm loves to drop back to around 1200-1500 rpm, which makes it hard for me to maintain a good speed on the highway. I am stage 2 and recently had it tuned and the turbo seems to kick in but it isnt fun when it cant pass 3k rpm. Also in manual mode, while reaching the higher rpm (3k rpm or above) it seems very choppy and feels like it struggles. Would resetting the ECU and changing my way of driving help? Maybe i need to drive more aggressively? At lower speeds and low boost (under 2700 rpm) the car feels fine, but once it hits boost and above 3k rpm it just feels weird! Link to comment Share on other sites More sharing options...
JMLegacy Posted May 19, 2014 Share Posted May 19, 2014 How does it idle? Disconnect your maf sensor and drive. If it behaves OK then check for boost and vac leaks +1 in BPV failing Link to comment Share on other sites More sharing options...
aziankingz Posted May 19, 2014 Share Posted May 19, 2014 Yeah it is the stock BPV. Idle is excellent and the tuner says all parameters of the tune and engine are great. I am on the VF40 running 18 psi. I thought most of those who goes to stage 2 keeps the stock BPV? Maybe i will get a video of what happens when driving. It goes to 3000 rpm very quick and i hear the boost buildup, then it is as if it hits a wall and just bogs arouond 3000 and 3100 rpm. Link to comment Share on other sites More sharing options...
firehawk618 Posted May 27, 2014 Share Posted May 27, 2014 Anyone else having the lazy 1-2 shift? Most annoying issue about the trans. It's the one behavior that's keeping me paranoid about slipping clutches. Same behavior in my trans. I also have the hexmods. I'd REALLY like to figure out how to to reprogram the tcu to quit pulling all torque / linepressure during this shift. 10' CTS-V, A6, Airraid, 2.4 upper, ID850's, self tuned. SOLD:06' LGT Wagon. BNR16G, Catless UP, DOWN, Hexmods VB, Hexmods diff bushings, BIG TMIC. Best 0-60: 4.651 by AP 1/4= 13.678@100.73 mph, 1.945 60', Automatic transmission. Link to comment Share on other sites More sharing options...
Rattsl Posted May 27, 2014 Share Posted May 27, 2014 So....how do you launch a 5EAT? Like...properly. Link to comment Share on other sites More sharing options...
RooTBeeR Posted May 27, 2014 Share Posted May 27, 2014 Not like this. http://instagram.com/p/nBj15tnARQ/ "Build" Thread <--Link (OLD) '05 EJ255 now a '13 EJ257 Bottom End w/D25 heads (NEW) Forever Slow [sIGPIC][/sIGPIC] Link to comment Share on other sites More sharing options...
frank_ster Posted May 27, 2014 Share Posted May 27, 2014 So....how do you launch a 5EAT? Like...properly. mash down the brake pedal.. mash the gas pedal down .. then your rpms get to like 3000-3500 let go of brake while holding full throttle. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
Rattsl Posted May 27, 2014 Share Posted May 27, 2014 mash down the brake pedal.. mash the gas pedal down .. then your rpms get to like 3000-3500 let go of brake while holding full throttle. That doesn't mess it up? I've been doing it like that, but not sure if that's right... Link to comment Share on other sites More sharing options...
frank_ster Posted May 27, 2014 Share Posted May 27, 2014 oh so you want to do it right well install a megasquirt .. then use the anti lag / launch control feature Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted May 27, 2014 Mega Users Share Posted May 27, 2014 That doesn't mess it up? Usually not the first few times... Link to comment Share on other sites More sharing options...
doccrowley Posted June 2, 2014 Share Posted June 2, 2014 Can you say that again, just a little slower so that I can understand? Link to comment Share on other sites More sharing options...
frank_ster Posted June 2, 2014 Share Posted June 2, 2014 ^ did you try reading it upside down ? Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
frank_ster Posted June 4, 2014 Share Posted June 4, 2014 i never had issues with throttle shutting or retarding timing during 1/4 mile runs. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
fishbone Posted June 4, 2014 Share Posted June 4, 2014 No pull back on stock TCU program. Does this mean that when the TCU sends the signal to the ECU to retard timing, the amount of timing retard is 0? Just making sure I am reading that right. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted June 4, 2014 Mega Users Share Posted June 4, 2014 That sounds like what he's talking about. I tried messing with that for a while, but lost interest. Someone with more IDA experience could probably figure that out in a day. Link to comment Share on other sites More sharing options...
fishbone Posted June 4, 2014 Share Posted June 4, 2014 I've been wondering if you're allowed to be an asshole and add positive values Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted June 4, 2014 Mega Users Share Posted June 4, 2014 What could go wrong? Link to comment Share on other sites More sharing options...
frank_ster Posted June 4, 2014 Share Posted June 4, 2014 The only time I have seen timing retard from the tcu is when I brake boosted for a Long time the fluid heated up Enough. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted June 4, 2014 Mega Users Share Posted June 4, 2014 I think he's referring to the shift timing retard. Actually I re read it and have no idea wtf he's talking about. Link to comment Share on other sites More sharing options...
frank_ster Posted June 5, 2014 Share Posted June 5, 2014 ^ yes during shift retard. But I have never seen mine do that Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
doccrowley Posted June 5, 2014 Share Posted June 5, 2014 And I thought I was the only confused one. Link to comment Share on other sites More sharing options...
Mega Users seabass07 Posted June 5, 2014 Mega Users Share Posted June 5, 2014 It definitely happens during shifts, but I've never seen it during a launch or even heard about it. Link to comment Share on other sites More sharing options...
frank_ster Posted June 5, 2014 Share Posted June 5, 2014 During normal launch no. Just if your building boost for a long time on a car with huge turbo and not enough stall . But what makes you say the timing retard during shifts ? I have data logged and have not seen it on the actual timming. Now that's thinking out of the boxer! fyi all 05 + legacy's have built in code reader Link to comment Share on other sites More sharing options...
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