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Thread: Commanded throtle body position never changes

  1. #1
    Potential Tuner
    Join Date
    Jan 2016
    Posts
    7

    Commanded throtle body position never changes

    I have an L96 out of a 2012 silverado 2500 in a 1998 BMW 528i. Im using e78 ecm, the factory truck throttle body and the gm performance parts ls3 accelerator pedal. The pedal seems to function perfectly and in logs it goes 0-100 percent with the full pedal stroke, but the commanded throttle body position never changes and the throttle body therefore doesn't move. If I move it by hand when its off then it moves back to where the computer commands it to when i give it power again. I don't understand why the commanded throttle body position doesnt change with pedal movement.

    Thanks,
    Mike dbw issue.hpl

  2. #2
    Senior Tuner
    Join Date
    Mar 2011
    Location
    Ripley, MS
    Posts
    1,865
    What DTC's do you have?

  3. #3
    Potential Tuner
    Join Date
    Jan 2016
    Posts
    7
    No dtc's, that's why I'm confused