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Hi Folks, We seem to have an ongoing problem here. The engine has run over 120 hours now. At RPM's above 5000 the Lane B light comes on and RPM increases approx by 200, there is no loss of Lane B power though, still 13.8 odd volts. When the switch is recycled the Lane B light goes out only to come on again later. The Dongle info says the Lane B manifold sensor, we have changed this sensor 3 times now but still comes on eventually and also changed the Fuse Box and the ECU but to no avail. It is too much of a coincidence that there have been 3 'Faulty' Sensors supplied. I s there something wrong with our wiring. I
  • Re: Lane B Sensor problem

    by » 9 years ago


    Have you wired that sensor in place with wire ties or safety wire to keep vibration issues at bay?

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Lane B Sensor problem

    by » 9 years ago


    I'm Phill's colleague,we use the dongle diagnose them,It warns Manifold Air Pressure like below picture.Do you know the mean advanced BIT engine ON? Thanks

    ManifoldAirPressure.jpg (You do not have access to download this file.)

  • Re: Lane B Sensor problem

    by » 9 years ago


    Hi
    Check Sensors conectors, I had problmes with MAT and MAP due to vibrations.
    I used safety wires

  • Re: Lane B Sensor problem

    by » 9 years ago


    My first guess is it is just a loose sensor that needs to be secured better.

    Roger Lee
    LSRM-A & Rotax Instructor & Rotax IRC
    Tucson, AZ Ryan Airfield (KRYN)
    520-349-7056 Cell


  • Re: Lane B Sensor problem

    by » 8 years ago


    At take-off the lane B lignt comes ON.

    After switching OFF/ON once or several time the Lane B light comes OFF.

    According to FinessMax and Rotax, it is not a serious problem (manifold sensor).

    BUT LAST SUNDAY, AFTER RESETTING LANE B, THE MOTOR START TO LOOSE POWER. I WAS AFRAID TO MAKE AN EMERGENCY LANDING IN MOUNTAINS ENVIRONMENT.

    It lasts for few minutes, then it was OK. I flew 40 minutes and landed. Just after the take-off (way back) the same happened without any resetting, the engine start to run strangely, like it has propblem to give power (up and down power).

    Now I don't what to do and I guess that I shouldn't continue to fly.
    160504-Rotax912is-FinessMax-LaneBProblem.jpg (You do not have access to download this file.)

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