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Thread: please look at my file

  1. #1
    Tuner in Training
    Join Date
    Jun 2012
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    18

    please look at my file

    its a 1999 4.8 silverado and is a slug towing, found valve train tripping knock sensors no more knock!
    Attached Files Attached Files
    Last edited by [email protected]; 08-19-2013 at 05:53 PM.

  2. #2
    Senior Tuner SultanHassanMasTuning's Avatar
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    Nov 2009
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    3,149
    its hard to go off these narrow band sensors sometimes, do you have a wideband installed?
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  3. #3
    Tuner in Training
    Join Date
    Jun 2012
    Posts
    18
    valve train making knocks go off replace valve train all is good!
    Last edited by [email protected]; 08-19-2013 at 05:54 PM.