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Thread: Knock Advance not engaging

  1. #1
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    Knock Advance not engaging

    I'm working on a basic tune and for some reason knock advance is not working on this one. I've tried to change retard settings but still does not work. I don't see anything out of place so not sure what is causing this. Thanks
    2020GreyGTchris.hpt

  2. #2
    Senior Tuner veeefour's Avatar
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    Knock per cylinder and Borderline higher than MBT...

  3. #3
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    I verified the borderline tables arent higher than the MBT. Theyre very very close in some mid range areas which is probably why its not doing anything. I extended the MBTs out by 5 degrees so that should help a bit. Thanks again veefour

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  5. #5
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    Quote Originally Posted by veeefour View Post
    Post a log
    Ill have to get one when i get back to my laptop. It just stays at 0 the whole time basically. I will test it this week and see if moving MBT up fixes it. Thanks

  6. #6
    Senior Tuner veeefour's Avatar
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    Few things can prevent OP, KNOCK or PE kicking in - sometimes it makes no sense or rhyme.

  7. #7
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    I hear ya. Thankfully never had issues going into OP or PE. Only this issue now, but makes sense it's not advancing since borderline is nearly at MBT... There's no more it can actually advance to. So I will test this out this week. Work very busy. Thanks again!

  8. #8
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    So I pushed MBT values up 8 degrees higher than my borderline table. Still doesn't work. I will try some other things to see if it will work.