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Thread: Fuel trims vs wideband reading

  1. #1

    Fuel trims vs wideband reading

    Probably overthinking this but never hurt to ask.

    Tuning with wideband EQ Error is .50 - .80. This is just in one area of the graph for example
    short term Fuel trims show -3 - -6 in same areas.
    Lambda is within 1-2% from commanded across the board on MAF and VVE.
    Long term fuel trim disabled. Is this normal.?

    No log on my phone to attach

    2015 Chevy 5.3/6l80e. Running in 3rd gear with Tcc locked

  2. #2
    Tuning Addict blindsquirrel's Avatar
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    Quote Originally Posted by TZTuning View Post
    No log on my phone to attach
    Oh, well, in that case the rules do not apply. Clever workaround!

  3. #3
    Hey it works! Lol. Just simply asking if that much of a discrepancy between narrowbands and wideband is acceptable