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-   -   2012 STI Miss fire cylinder 4 SI-drive and Cruise control blinking (http://www.wrxtuners.com/forums/f121/2012-sti-miss-fire-cylinder-4-si-drive-cruise-control-blinking-33144/)

Dsember32 10-12-2012 01:34 AM

2012 STI Miss fire cylinder 4 SI-drive and Cruise control blinking
 
6 months I installed Perrin bov,K&N typhoon intake,Invidia cat back,and Cobb AP tuner running the stage 2 93 octane tune. 2 days ago I was driving and all of a sudden my check engine comes on and the SI-Drive,cruise control ,and something else keeps blinking. Also. It won't let me switch out of sharp mode and it won't boost over 10psi. Only while accelerating at low rpm and while at cruising speed the car starts to sputter and lacks power untill over 3-3500 rpm. I was told it was the 02 sensor so I replaced it and nothing changed also I reflashed and reset the computer and cleared the codes. Everything seemed to b fine till about 10 minutes into driving and it happened again and again and again. Can some one please help me and give me some insite to what's goin on

pzr2874 10-12-2012 05:55 AM

Switch it back to the Stage 1 tune. You aren't at stage 2.

Read the map notes.

Then reset your ECU by disconnecting the battery. Hold down the brake pedal a few seconds and wait 5 mins to reconnect it.

Dsember32 10-12-2012 07:20 AM

Thanks I'll try that right now. How come it took 6 months for it to start messin up then the day that I changed the tune. I hope that works Im dropping the car off today to have the Invidia catted down pipe installed.

man show 10-12-2012 07:27 AM

After you install the downpipe, you'll want to reflash to the Stage 2 map.

pzr2874 10-12-2012 08:47 AM

[quote=Dsember32;286708]Thanks I'll try that right now. How come it took 6 months for it to start messin up then the day that I changed the tune. I hope that works Im dropping the car off today to have the Invidia catted down pipe installed.[/quote]

Very forgiving car it seems. I wouldn't install the DP until you get this issue resolved IMHO.

Dsember32 10-12-2012 09:00 AM

I just tried it so far nothing but in the last few attempts it's take 20-30 minutes before it starts acting up and trippin codes. If it doesn't work I'll have to wait on the dp and put all the stocks parts on and take it to the dealership

pzr2874 10-12-2012 09:25 AM

Good luck

WrxCruising 10-12-2012 09:57 AM

Yes please read the notes that come with every map... mistakes cost a fortune... good luck!

Dsember32 10-12-2012 10:28 AM

Thanks I think I'm gonna need it

Dsember32 10-12-2012 10:58 AM

Is there any chance that it's doing this because I might have burned out the stock catylic converter for running a tune that's for a high flow cat because like I said before ive been driving it for 6 months with that tune and never had a problem. Well I'm gonna go drive around for a while and hope for the best.

mosc 10-12-2012 12:33 PM

Unlikely. Much more likely you're getting knock and your motor is blown.

Dsember32 10-12-2012 02:17 PM

No deff not blown car is running fine now after I reset the computer. Since there's nothing wrong with it I'm gonna drop it off at the shop to have the Invidia catted downpipe installed the switch it back to stage 2 tune
Thanks pzr2874 for the help

Dsember32 10-12-2012 04:16 PM

Ok problem not fixed engine light and si drive blinking again but with out hesitation at low rpm and car still boosts at normal psi instead of boosting at 10 psi when problem accured

pzr2874 10-12-2012 04:30 PM

Put the stock map back on and take it in. Hopefully you let the AP upload the stock map before reflashing it.

OR....

Put the stock map on it and see if it does it for a day or so.

THEN flash the sg 1 map and drive it around for a day. If it still does it, take it in.

Dsember32 10-12-2012 06:23 PM

When I installed the ap it saved the stock tune before it even let me do anything and I read that when u uninstall it automatically installs the stock tune


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