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-   -   Does the Cobb AP really delete the 420 code? (http://legacygt.com/forums/showthread.php?t=200730)

WaspGT 01-30-2013 03:11 PM

Does the Cobb AP really delete the 420 code?
 
I have a 2005 LGT and recently installed a CNT catted DP. It was fine for a week until it broke in. Now my CEL is on and the cruise light is flashing. Someone told me that if i went with the CAP it would delete the code and my car would run better and gain the extra power. Before i take the $500 plunge could someone enlighten me on the "truth" of the matter? Any help would be much appreciated. Right now i feel like im just going in circles! Thanks:spin:

robitrice 01-30-2013 03:16 PM

is your car tuned for the DP? if not you can get the AP and download a map for the dp or get a protune. both are the same pm Brentuning on here for tuning options.

stuck686 01-30-2013 03:17 PM

yes and regardless of the flashing lights, u need a stage 2 tune

Max Capacity 01-30-2013 03:18 PM

You will need to install the Cobb AP stage 2 map or go open source tune if your good with a lap top.

Check out the Tuning forum and the Vendor forum for info.

I use www.tuningalliance.com a vendor on here my tuning needs.

You also should install a catless up pipe

WaspGT 01-30-2013 03:58 PM

Thanks for all of the quick replies everyone, very much appreciated. Ive only had the car since last May. The only things ive done for mods are as follows:
1) Cx-Cat back stainless 3"
2) CNT 3" catted DP
3) K&N Typhoon intake
4)Power stop Drilled/Slotted Rotors & Kevlar Pads

So, in other words... mainly stock. I havent bothered with mapping the ECU yet because i've been toying with the idea of the CAP. I planned on upgrading the
up-pipe with a nice stainless piece but havent purchased one yet. Any ideas on where i should look considering my budget is tight at the moment. I also need suspension work... control arms bushings sway bar end links etc. Whiteline and Perrin had some nice options, but i havent really been under this car yet like i had in my Audi, can you buy just the press-ins or should i look for the complete control arm kits.... aaah... so many questions. Sorry, new car:/

cryo 01-30-2013 04:18 PM

The cobb ap will clear out the p0420 code and will increase performance significantly from what your running now. The ecu is actually detuning the car presently since its seeing higher boost levels than stock as well as the intake needs to be calibrated properly.

You would be fine running the cobb stage 2 tune with your current downpipe but cobb does not offer maps designed to run with the k&n system. There are quite a few options for custom tunes on the forums, obviously we would be one of them but pick the source that seems to fit your needs best for what you want to accomplish. If you have any questions otherwise your more than welcome to read up on my tuning faq in my signature or website or shoot me a pm.

Have a great day and welcome to an addiction....:)

Dave

WaspGT 01-30-2013 04:54 PM

Thanks Dave. This car is already impressive so more power is always welcome here! Now you said that the CAP wont recognize the K&N, but its just a simple intake... that doesnt make sense... is this going to pose a problem for me? I have inspection coming up on the 28th of FEB. Obviously theyre going to have to unplug the Cobb when they plug the LGT into the OBD-II machine... will the engine light come back on then or does the flash stay activated even when the Cobb is unplugged?

BarManBean 01-30-2013 05:21 PM

You should remove the intake and reinstall the stock intake. Then load the stage 2 91-octane tune using a Cobb Accessport and continue to fuel up with 93-octane if it is available. After you are done loading the map with the accessport you can unplug everything from the OBD port, emissions testers will have no issues using that port while an aftermarket tune is loaded.

You don't leave the accessport plugged in all the time--only when you are flashing a new tune, logging, or using it as a gauge for something.

BarManBean 01-30-2013 05:22 PM

Here, watch this--it should help:


LegacyKid5 01-30-2013 05:25 PM

Not sure if it's relevant, I couldn't quite tell if you were trying to keep the intake installed or not, but cobb makes a stage two tune that includes an intake. Although some might argue that an intake other than stock is useless until you have a larger turbo, if you were trying to keep the intake you can download the stage 2 +intake tune from the cobb website and put in on an accessport.

mitskip 01-30-2013 11:32 PM

I vote open source tune! Far less than the CAP and you are getting a custom tune specific to your leggy!

TheBlackPearl 01-31-2013 05:28 AM

I'll sell you my AP! Then I could get a pro tune, lol.

Max Capacity 01-31-2013 05:57 AM

Quote:

Originally Posted by WaspGT (Post 4270815)
Thanks Dave. This car is already impressive so more power is always welcome here! Now you said that the CAP wont recognize the K&N, but its just a simple intake... that doesnt make sense... is this going to pose a problem for me? I have inspection coming up on the 28th of FEB. Obviously theyre going to have to unplug the Cobb when they plug the LGT into the OBD-II machine... will the engine light come back on then or does the flash stay activated even when the Cobb is unplugged?

Do you have a lap top ?

If so contact Dave and have him send you a MAP, you and he can email each other from now on.

WaspGT 01-31-2013 10:18 AM

Forgive me if im wrong but i checked both Cobb and K&N before i purchased an intake. For the money K&N was the most complete kit, but the quality and design is basically the same. So why would i want to purchase an overpriced cookie cutter tune from another vendor when the Cobb should already a few already pre-installed?:confused:

Now before someone tries to crucify me, remember that this is my first Subie so everything is new to me here... which is why i joined this forum in the first place.

@ Max capacity, why do i need to email one person back and forth? Im having better luck here, getting useful feedback from several of you at once. Plus, im not paying $150 for a tune i can get for free online.

Although most that i speak to promote the open source tune over Cobb, i still think Cobb is my best option now. I have an inspection coming up and need the CEL gone stat, my car will need some heavy suspension work before i decide to go all out and upgrade anything else making it worthy of a dyno tune:lol:

I really appreciate all of your feedback guys, thanks again!

Max Capacity 01-31-2013 11:48 AM

Remember, you get what you pay for. A free map is just that. Free. I'm sure the person who put it out there will back up his map when your engine blows. I'm sure he'll be there to give you money towards the rebuild.

You need to get a custom MAP for your car to be really safe. Even that is not perfect.

Read on here and see how many have had pistons go bad in a newer ej257 with tunes.

You need to be safe and pay the man for a good MAP.

Dave helps out here for free, you might as well support him and buy from him.

I do that with my Tuner and promote his name when ever I can. He even pays to be on this site in the Vendor Forum. www.tuningallaince.com


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