STI issues :( NEED HELP!!

lmitchell255 · 11-02-2012, 11:39 AM

I have a 2012 Impreza STI limited and I need some help. My car has a K&N intake, agency power downpipe, invidia cat-back, and a turbo blanket(idk if that's relevant). I live in Nebraska and its about 40-50 degrees f outside right now. My car is open source tuned and yes we did tell the 0-2 sensors not to freak out once I put the downpipe on. I don't have the codes for my check engine light but I figured I'd ask you guys real quick. THE PROBLEM: Everytime I jump on the interstate or I'm cruising around 65 in fifth or sixth gear my check engine light comes on immediately. If I'm having fun and using boost and driving like an idiot my check engine light won't come on but obviously I can't do that all the time. The car drives fine with it on but I'm stuck in sport mode with no cruise control. If I park the car for 24 hours and go start it the light will be off. Any ideas what this could be?

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RoadKillDMD · 11-02-2012, 11:47 AM

Well, it would help us help you a lot better if you pulled the code. If we don't have a code to work with, there ain't much we can tell ya...

Wicked Innovation · 11-02-2012, 12:20 PM

if its coming on under cruise only i can pretty much guess its goign to be a fuel trim code, either system too rich or lean. Most likely from a miscalibration of the intake.

get teh code and report back

Tripintaz · 11-02-2012, 01:30 PM

no code, no help. sorry

Type2 · 11-02-2012, 04:36 PM

on your way home from work today, stop by Oreilly's, Auto Zone, NAPA, etc and have them pull the code. Otherwise we're all just guessing.

zwalk · 11-02-2012, 08:04 PM

I thought you were talking about a STD...

drewvdw · 11-02-2012, 09:06 PM

If you're on facebook, look up the Siouxland Subaru Club, there's a couple locals that may be able to help you.

Ghostwhite · 11-19-2012, 08:30 PM

Pull the codes for sure.

myblusti · 11-20-2012, 10:54 AM

are you punching it at low rpm? ive heard and i could be misatken is that can cause an overboost code. i was told this by the head mech at the subaru dealership. you definatly need to pull the codes.

swpshgnwgn · 11-20-2012, 11:24 AM

Quote:

Originally Posted by myblusti

are you punching it at low rpm? ive heard and i could be misatken is that can cause an overboost code. i was told this by the head mech at the subaru dealership. you definatly need to pull the codes.

He said it's only when he's cruising. Regardless, this thread is over two weeks old. Lets hope he has it figured out by now.

11-02-2012, 11:39 AM	#1
lmitchell255 Scooby Newbie Member#: 336806 Join Date: Nov 2012 Chapter/Region: MWSOC Location: Omaha, NE Vehicle: 2012 Impreza STI Pearl White	STI issues :( NEED HELP!! I have a 2012 Impreza STI limited and I need some help. My car has a K&N intake, agency power downpipe, invidia cat-back, and a turbo blanket(idk if that's relevant). I live in Nebraska and its about 40-50 degrees f outside right now. My car is open source tuned and yes we did tell the 0-2 sensors not to freak out once I put the downpipe on. I don't have the codes for my check engine light but I figured I'd ask you guys real quick. THE PROBLEM: Everytime I jump on the interstate or I'm cruising around 65 in fifth or sixth gear my check engine light comes on immediately. If I'm having fun and using boost and driving like an idiot my check engine light won't come on but obviously I can't do that all the time. The car drives fine with it on but I'm stuck in sport mode with no cruise control. If I park the car for 24 hours and go start it the light will be off. Any ideas what this could be? * Registered users of the site do not see these ads.

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11-02-2012, 11:47 AM	#2
RoadKillDMD Scooby Specialist Member#: 284792 Join Date: Jun 2011 Chapter/Region: RMIC Location: Vanilla Valley, CO Vehicle: 2011 STI Plasma Blue Pearl	Well, it would help us help you a lot better if you pulled the code. If we don't have a code to work with, there ain't much we can tell ya...

11-02-2012, 12:20 PM	#3
Wicked Innovation NASIOC Vendor Member#: 265606 Join Date: Nov 2010 Location: West Kingston, RI	if its coming on under cruise only i can pretty much guess its goign to be a fuel trim code, either system too rich or lean. Most likely from a miscalibration of the intake. get teh code and report back

11-02-2012, 01:30 PM	#4
Tripintaz Scooby Specialist Member#: 245218 Join Date: Apr 2010 Chapter/Region: South East Location: FL Vehicle: 2013 STI Limited Ice Silver	no code, no help. sorry

11-02-2012, 04:36 PM	#5
Type2 NASIOC Supporter Member#: 200436 Join Date: Jan 2009 Chapter/Region: MWSOC Location: Lawrence, KS Vehicle: 2004 Forester XT Black	on your way home from work today, stop by Oreilly's, Auto Zone, NAPA, etc and have them pull the code. Otherwise we're all just guessing.

11-02-2012, 08:04 PM	#6
zwalk Scooby Specialist Member#: 281705 Join Date: May 2011 Chapter/Region: SWIC Location: Flagstaff, AZ Vehicle: 2005 STi PSM	I thought you were talking about a STD...

11-02-2012, 09:06 PM	#7
drewvdw NASIOC Supporter Member#: 255776 Join Date: Aug 2010 Chapter/Region: MWSOC Location: Laramie, WY Vehicle: 2010 LR WRX MPS and PAR powered.	If you're on facebook, look up the Siouxland Subaru Club, there's a couple locals that may be able to help you.

11-19-2012, 08:30 PM	#8
Ghostwhite Scooby Newbie Member#: 254958 Join Date: Aug 2010	Pull the codes for sure.

11-20-2012, 10:54 AM	#9
myblusti Scooby Newbie Member#: 337871 Join Date: Nov 2012 Chapter/Region: South East Location: beaufort Vehicle: 2010 5-door STI blue/gold	are you punching it at low rpm? ive heard and i could be misatken is that can cause an overboost code. i was told this by the head mech at the subaru dealership. you definatly need to pull the codes.