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Thread: 2014 chevrolet 1500 5.3

  1. #1
    Tuner in Training
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    2014 chevrolet 1500 5.3

    this truck has CAI, short headers, no cats. i have tuned the MAF to get good idle and fuel trims, but at WOT it leans out to 16.0, does not seems to be going into PE mode.

    any ideas?
    hall good idle.hpt

  2. #2
    Senior Tuner Ben Charles's Avatar
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    This is gen 5... probably Bc the Tq model is off.. not like gen 4s

  3. #3
    Tuner in Training
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    Thanks any idea on how to correct?

  4. #4
    Senior Tuner Ben Charles's Avatar
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    Didn?t look at tune.. but don?t max out peak Tq for starters (bet that?s the main culprit right now)

  5. #5
    Tuner in Training
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    thank you will try that