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Old 12-10-2009, 11:38 PM   #1
Bugeyescubie
Scooby Newbie
 
Member#: 232116
Join Date: Dec 2009
Chapter/Region: SCIC
Vehicle:
2003 wrx wagon
Silver

Default Need help!!!!!

I have an 02 wrx Cobb access port stage2 91oct stromung turbo back exhaust and a short ram intake that I just installed today had a flashing cel but went away after I got off the gas the engine stutters in around 4500 rpms when I get on the gas
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Old 12-11-2009, 12:00 AM   #2
Brother EddieJ.
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Member#: 181617
Join Date: Jun 2008
Chapter/Region: MAIC
Location: frederick, md
Vehicle:
2004 wrx
6speed/ 330whp/ 300wtq

Default

Uninstall and reinstall. Try it again. It only takes a few minutes. Then report back. The ap should clear all cels. What was then cel code?

What is the specific question you want answered? Any more info?

Clean maf sensor
are you getting full boost? How many psi
and you did flash the ecu with the 91 map?
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Old 12-11-2009, 12:26 AM   #3
phlegmon
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Member#: 26223
Join Date: Oct 2002
Chapter/Region: SWIC
Location: Tulsa
Vehicle:
2012 GTR - on E85
07 STi twinscroll XTR

Default

Put the stock intake back on, for starters. If you're not tuned for the intake, you could potentially cause fuel trim problems and cause your car to run poorly. Most cause alot of turbulence at the MAF sensor and cause all types of erratic engine behavior. Even if you are tuned, the short-ram intakes are universally bad (unless you have a properly set up intake heat shield), as they suck in hot underhood air, causing your IAT to be abnormally high (that's bad- your ECU will pull timing when it sees high IAT). There's a reason people refer to short-ram intakes as "hot air intakes".
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Old 12-11-2009, 03:16 AM   #4
RayN
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Member#: 135789
Join Date: Dec 2006
Chapter/Region: SWIC
Location: Las Vegas
Vehicle:
2005 STi
CGM

Default

if everything else sudjested in this thread checks out fine. you might want to look into replacing your fuel pump. i think you can monitor the air fuel ratio with the accessport and even tho its a narrow band, you will still see it runing around the 14ish area at WOT if the fuel pump was takin a dump. Had this same issue with a buddys car that looked like it was a bad maf since it ran fine after swapping mafs, but the problem returned
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