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Thread: Knock Retard Valid Max

  1. #1
    Advanced Tuner
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    Sep 2018
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    Knock Retard Valid Max

    Question.. I'm confused on this parameter. I'm having a hard time understanding the description. What exactly does the Knock Retard valid max do?

    Thanks everyone.


    knock silverado.PNG

  2. #2
    Advanced Tuner
    Join Date
    Aug 2018
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    I believe it has to do with the algorithm used to trigger a knock sensor fault code. Used to be 12 or something on older stuff, then GM changed the calculation and it's 2 or 3 on newer stuff.

  3. #3
    Advanced Tuner
    Join Date
    Sep 2018
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    213
    Quote Originally Posted by RobZL1 View Post
    I believe it has to do with the algorithm used to trigger a knock sensor fault code. Used to be 12 or something on older stuff, then GM changed the calculation and it's 2 or 3 on newer stuff.
    Thank you.