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  1. #1

    2007 GTX Wake 155 RPM issues HELP!!

    Hello I am new to the forum!

    I am having an issue with my GTX wake. It will only go up to 6400 RPM's WOT.
    When I take it out it runs at 5800rpms then after a few minutes will increase rpm to 6400 (supposed to top out at 7500). It also misfires at 3500rpms sounds like popping out of the exhaust. No codes. BUDS reads everything as normal.

    Here is what I have tried so far. Changed spark plugs, fuel pump and filters, swapped coil packs with another one that runs fine, ran it with the seats off, checked throttle travel, checked oil lvl, checked compression on cylinders - 162, 165, 178. Is that compression ok? any other ideas? I am out of ideas and hope its a simple fix somewhere in the system.

    thanks!

  2. #2
    Resolved the issue. It is an ECU problem. It was not communicating well with the MAP sensor. Once I unplugged the MAPS she started running perfectly so thank goodness no mechanical issues! i am now going to be either having the ECU fixed or get another one.

  3. #3
    Quote Originally Posted by Kpvalentine View Post
    Resolved the issue. It is an ECU problem. It was not communicating well with the MAP sensor. Once I unplugged the MAPS she started running perfectly so thank goodness no mechanical issues! i am now going to be either having the ECU fixed or get another one.
    MAP sensors are prone to failing and are a helluva lot cheaper than ECM's. What intake pressure values were you showing when connected to BUDS? A good MAP sensor will read 14.7 psi with engine off, a lower value when at idle.


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