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2G My 1997 GST wont start

Posted by Cotye, Nov 21, 2019

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  1. Cotye

    Cotye Probationary Member

    Joined Aug 30, 2019
    GEORGETOWN, Delaware
    I have a 1997 Eclipse GST i recently just bought 500cc injectors for it and when i put them in the car. The car ran than we shut it off than when we went to start it back up it just keeps turning over. Im new to all this and need help.

    Thanks in advance
  2. rabenne

    rabenne Proven Member

    Joined Apr 21, 2006
    Racine, Wisconsin
    What did you use to tell the ECU it had bigger injectors? SAFC? ECMlink?

    Otherwise it thinks you are still using stock injectors. I recommend putting the stock ones back on if you dont have a way to calibrate the 500cc injectors. It wont run well on 500ccs if you dont tell the ECU that is what is on there.

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  3. BLACK'98DSM

    BLACK'98DSM Proven Member

    Joined Feb 9, 2019
    Hoover, Alabama
    Seems like it would be able to start with them though.

    Have you checked your fuel pressure?

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  4. Cotye

    Cotye Probationary Member

    Joined Aug 30, 2019
    GEORGETOWN, Delaware
    Yes and the fuel pressure is fine. I didn't think 500s would mess anything up.
  5. motomattx

    motomattx Proven Member

    Joined Dec 9, 2010
    wampum, Pennsylvania
    Check spark on all four plugs, then compression, then injector pulse, after you pull the plugs and check to see if they are simply fouled.

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    1995 Mitsubishi Eclipse GST
    fwd · manual · 2G DSM
  6. miguelmcv

    miguelmcv Supporting Member

    Joined May 3, 2009
    Fresno, California
    You need management to get those 550cc dial in, otherwise you will be dumping to much fuel and it will not tart or it will run extremely rich and risk to trash your engine.

    Street Build 536  1

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    manual · 2G DSM

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