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Thread: LT bank 2 trims

  1. #1
    Tuner in Training
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    LT bank 2 trims

    I am seeing a -15.6 on bank 2 LT fuel trims. Is this a nad thing?

  2. #2
    Senior Tuner
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    Dec 2009
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    1,084
    yes it is.

    For more help post a log and your tune and your hardware (modifications etc)

  3. #3
    Tuner in Training
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    Here is all info. It seems to be an ongoing issue. Any help would be appreciated. I have Greg's first DVD on order from summit, it should be here by Monday.

    Thanks.
    Attached Files Attached Files

  4. #4
    Tuner in Training
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    The mods are: 2008 GMC Sierra with 221/224 114 cam, Front mount Turbonetics 76 ball bearing turbo, Snow meth kit, 5-6 psi at the moment.

  5. #5
    Senior Tuner Mep_q8's Avatar
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    Mar 2006
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    try decresing your MAF Freq table from 7000 below my 10%. take another log and change according.. or subtract 10% from your Offset VS igniton voltage and post up a new log. the MAF Freq is probably easier for you.

    your AFr at WOT still looks a little rich..

    Bader Norris
    MEP Tuned
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