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  • Re: High EGT's and low RPM

    by » 8 months ago


    Reseated and sprayed Deoxit in the ambient air temp connector just in case.  No change in operation of the engine.


  • Re: High EGT's and low RPM

    by » 8 months ago


    UPDATE - I now have the logs for the engine.  Right away it showed faults that lead to the problem.  Here are some screen shots and the files.  

     

    24934_2_Fault logs 1.png (You do not have access to download this file.)
    24934_2_Fault logs 2.png (You do not have access to download this file.)

  • Re: High EGT's and low RPM

    by » 8 months ago


    Having trouble attaching the logs.  I will send them directly to anyone who would like to look.  


  • Re: High EGT's and low RPM

    by » 8 months ago


    It looks like a problem with a Manifold Air Temperature (MAT) Sensor, and a rear Spark Plug is misfiring.

    Recheck the connectors on the Temperature sensor on the Airbox and have a look at the Plugs in the rear cylinders (3&4).

    - - -

    I am going to openly admit to being ignorant.

    Can someone explain the reference to the "TPU Test" ???

    What does that mean specifically ???


    Bill Hertzel
    Rotax 912is
    North Ridgeville, OH, USA
    Bill.Hertzel@Yahoo.com
    Clicking the "Thank You" is Always Appreciated.


  • Re: High EGT's and low RPM

    by » 8 months ago


    Bill Hertzel wrote:

    It looks like a problem with a Manifold Air Temperature (MAT) Sensor, and a rear Spark Plug is misfiring.

    Recheck the connectors on the Temperature sensor on the Airbox and have a look at the Plugs in the rear cylinders (3&4).

    - - -

    I am going to openly admit to being ignorant.

    Can someone explain the reference to the "TPU Test" ???

    What does that mean specifically ???

    Rechecked and secured the MAT sensors with zip ties.  Checked one of the rear plugs, looked fine.  Checked and cleaned all of the ground connections.

    It just won't make the RPM's it should.  The experts are now leaning to swapping the ECU as it is simply acting strange.  


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