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Old 05-28-2021, 05:52 PM   #1
StimpyV2
Scooby Newbie
 
Member#: 388341
Join Date: Apr 2014
Location: Savannah, GA
Vehicle:
2004 Wrx wagon
White

Default V8 EJ207 Running Rich

Background info on the car:
172k miles on chassis and drivetrain
70k ish on V8 EJ207 W/ AVCS
Full exhaust
Stock twin scroll turbo
Grimmspeed 3 port
1000cc injector dynamics
E85
Intake
Turbo inlet
Tuned by Eric Minehart

Now to the problem
The car idles and cruises perfect at 14.7 on the AEM wideband. As soon as you start to go WOT the car slightly bogs and the wideband reads 10.0 and tapers slightly up to 10.8 in the higher rpms. I’ve replaced the front o2 sensor, IACV, cleaned MAF, replaced spark plugs, and thoroughly searched for vacuum leaks.

Unfortunately I can’t log anything right now as my ECU isn’t connecting to RomRaider.
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Old 05-29-2021, 10:50 AM   #2
subaru_gc8
Scooby Specialist
 
Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

did the car ever car run correctly or did you just get a AFR and never really knew what read?
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Old 05-29-2021, 03:11 PM   #3
StimpyV2
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Member#: 388341
Join Date: Apr 2014
Location: Savannah, GA
Vehicle:
2004 Wrx wagon
White

Default

Quote:
Originally Posted by subaru_gc8 View Post
did the car ever car run correctly or did you just get a AFR and never really knew what read?
The car has always ran perfectly, I’ve put probably 15k miles on its current setup. I’d normally be at 11.2 at wot.
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Old 05-29-2021, 10:54 PM   #4
TwistedAxles101
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Member#: 379235
Join Date: Jan 2014
Chapter/Region: MAIC
Location: Waynesboro VA
Vehicle:
2002 Impreza WRX
Blaze Yellow

Default

Check for boost leaks. Had a very similar situation and it ended up being a slightly torn inter cooler y-pipe.
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Old 05-30-2021, 01:02 AM   #5
subaru_gc8
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Member#: 29292
Join Date: Nov 2002
Chapter/Region: SCIC
Location: Orange County CA
Vehicle:
2004 WRX wagon
silver

Default

Quote:
Originally Posted by StimpyV2 View Post
The car has always ran perfectly, I’ve put probably 15k miles on its current setup. I’d normally be at 11.2 at wot.
i would see if you can get a known working MAF and try that .
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