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  1. #1
    Chelle's Avatar
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    2009 GTX LTD is Engine RPM faulty

    My GTX LTD is 2009 doesn't reach the 8250 rpm anymore.

    When engine is cold he get's to 7250 rpm, when he is on temperature max 6250 rpm.

    I've already checked the slip torque on the sc clutch. Changed the coils/spark plugs. Even changed the fuel pump.

    Can anyone help me plz.

    Thx Chelle


  2. #2
    Sturm215's Avatar
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    boost leak.. check all hoses and clamps.

  3. #3
    Chelle's Avatar
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    Quote Originally Posted by Sturm215 View Post
    boost leak.. check all hoses and clamps.

    I've already checked those but I'll take a closer look tommorrow.

  4. #4
    Chelle's Avatar
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    Any other ideas??

  5. #5
    Plugged intercooler? Also, can you swap the ecu with the 2011 to rule that out? Not sure if they are interchangeable though.

  6. #6
    Chelle's Avatar
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    Quote Originally Posted by 8 is enough View Post
    Plugged intercooler? Also, can you swap the ecu with the 2011 to rule that out? Not sure if they are interchangeable though.
    I 've also an other 2009 gtx is, i am gonna swap the ecu's tommorrow ... Hope that isn't the problem, those ecu's are expensive

  7. #7
    Chelle's Avatar
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    I cannot find a boost leak, checked and tested all hoses and clamps. Checked intercooler and intake manifold, nothing leaks.

    PSI is around 120-130 psi with cold engine. Cannot find table in manual.

    Maybe map sensor give false reading? But no fault code appears.

    Any other ideas?

  8. #8
    Your ski has a brake?
    Rpm how to not water - on land?
    Checking the fuel injectors, throttle butterfly position sensor.

    Yours faithfully.

  9. #9
    West Texas RXP skoepp's Avatar
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    Did you ever run debris such as rocks thru pump by accident.
    You could have changed the pitch in the prop dramatically and that could bring rpms down.

    what was slip on sc when you checked it?

    Maybe intercooler is cloged, but usually if that is the case it will throw high temp on exhaust cause want be getting the water it needs to cool exhaust.

    what is your rpm at idle.?

  10. #10
    HardmanGT's Avatar
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    Quote Originally Posted by Chelle View Post
    My GTX LTD is 2009 doesn't reach the 8250 rpm anymore.

    When engine is cold he get's to 7250 rpm, when he is on temperature max 6250 rpm.
    This really sounds like a slipping super charger to me. The 6,250 max RPM when warm is right about the RPM where you start producing boost. Without boost you aren't getting any more RPM. Are you sure you checked the slip properly?

    Are you sure you don't have a boost leak? The manifold and intercooler also need to be checked for leaks, not just the hoses. Did you pull off the hoses and check for metal?

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