help...My wrx is over boosting
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This is a discussion on help...My wrx is over boosting within the General Maintenance, Troubleshooting & Accidents. forums, part of the Tech & Modifying & General Repairs category; Hey guys! new to the sight. and first time Subaru owner, Ive just brought a 1996 WRX, with STI motor ...

  1. #1
    Registered User
    Join Date
    Feb 2013

    help...My wrx is over boosting

    Hey guys! new to the sight. and first time Subaru owner, Ive just brought a 1996 WRX, with STI motor and running gear. good looking tidy car. wrapped as with it!

    Its over boosting, I was told it was the wastegate Actuator from my friend who I brought it of, So I replaced that with a second hand one. its still over boosting.

    It lags allot when the turbo first starts to spool, then all of sudden it takes off! boosting up around the 20psi mark and that's only at about 6,000RPM

    I noticed it back fires abit as well when decelerating.

    It does have a chipped ECU with launch control and advanced timing and fuel/air ratio to suit 17psi, could it be that the chip is causing the ecu to play up??

    any help would be much appreciated!


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  3. #2
    and the Funky Bunch Calvinball's Avatar
    Join Date
    Jan 2012
    Philly Area
    Are there any other modifications done to the car?
    - Will
    Current Car: 2015 Honduh Civic SIgh
    Previous Cars:2014 Golf TDI, 2012 WRB WRX Hatch, 2004 RSX-S, 1998 Grand Prix GTP
    "Isn't it amazing how smart you feel when you just aren't being stupid?"

  4. #3
    Registered User
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    Feb 2013
    Hey just afew minor mods...front mount intercooler, BOV, pod filter, 3" exhaust from tubro.

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  6. #4
    zax is offline
    Super Modulator zax's Avatar
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    Nov 2008
    Neverland Ranch, Maryland
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    Re: help...My wrx is over boosting

    How is the car tuned?

    Beamed at your face at approx. 186,000 miles per second via DROID BIONIC
    2015 CWP WRX STi ... But how did I get roped back into an EJ motor?!
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  7. #5
    Moderator Donkey's Avatar
    Join Date
    Apr 2005
    Da boonies,Va
    I Support ClubWRX
    Is the ECU controlling the boost? Is it using Ecutek?
    Resident Adviser @ WTF Tuning, LLC
    2002 FORESTER S
    1998 FORESTER S

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