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Thread: 2011 cts-v knock issue...or not?

  1. #1
    Tuner
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    2011 cts-v knock issue...or not?

    Need some help with this issue. While cruising along I get these spikes of KR. When it pops up in chart as 2 degrees knock it's only cylinder 2, but when it pops up at 6 degrees in chart it does not log in any of the cylinders.

    The only way I found to fix this is to cut by half the Knock Fast Gain vs Baro and the Knock Fast Attack Gain vs coolant temp. Has to be both. If I leave these 2 with the parameters cut by half, is it ok to run like that? In the pics that is the stock setting. Just want to make sure I'm not doing something I shouldn't.

    Messing with the knock sensors, decay, burst, does not help. I have no issues with WOT, just while cruising along. Even tried 100 octane.






  2. #2
    Advanced Tuner vette_c6's Avatar
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    Jun 2008
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    post your file with your scanner log
    tell all mods in the car

    specialize in: V8 Tuning (Kuwait)
    Abdullah Al-najdi
    00965 99369929
    www.youtube.com/alnajdi83
    Tuners ! Quit Raping your PE TABLE !
    instagram : alnajdi83
    best number in 1/8 mile 4.54 ( My Driving + My Tune ) !

  3. #3
    Tuner
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    2.55 upper and Lingenfelter Air Intake

    Scans too big to attach.

    Any ill effects if I just leave those 2 Knock Attack settings halved?