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Thread: MAF tuning

  1. #1

    MAF tuning

    If I have the MAF AFR error histogram set up, what do i do with this information to change my fueling? i tried MAF Calibration<Airflow vs Frequency but that didnt work.

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    That is where you change it.

    That is the only MAF curve.
    2016 Silverado CCSB 5.3/6L80e, not as slow but still heavy.

    If you don't post your tune and logs when you have questions you aren't helping yourself.

  3. #3
    Senior Tuner mowton's Avatar
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    Mar 2007
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    Make sure you have set High RPM Disable/Re-enable to 400/390 to force PCM into "MAF only" mode so you are seeing the results of the MAF table standalone without VE correction.

    Copy the error data and Paste Special>Multiply % to the tune MAF table. Smooth area's you didn't hit.

    Ed M
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