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Thread: Lean ltft and knock

  1. 03-05-2008 #1
    viper1_2001
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    Lean ltft and knock

    When ever I'm cruising my ltft go really high but are fine at idle and wot, I put a walbro pump in it and it helped alittle. Also I'm getting alot of KR at wot and if I'm cruising and I go up a incline

    I have a 99 silverado with a 5.3 and 4l60e
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  2. 03-05-2008 #2
    viper1_2001
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    oops I meant to add this tune
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  3. 03-06-2008 #3
    viper1_2001
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    I also get some KR after shifts
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