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Thread: Credits for T42 Tune only

  1. #1
    Advanced Tuner
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    Dec 2019
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    Credits for T42 Tune only

    We have finished a 4L80E swap in a 2008 Silverado. Time to load the tune this week.
    How many credits is it going to take?
    Ive never had to do this and cant find an answer to it.

  2. #2
    Tuning Addict 5FDP's Avatar
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    May 2012
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    Rogers, MN
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    You'd read the PCM/TCM at the same time, so no matter what it's going to be 2 credits for that specific vehicle.
    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
    Advanced Tuner
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    I've already got the engine tuned with EFI Live. Just couldn't find the right OS with efi live to do the T42 4L80E. So now I have the T42 4l80e tune from the repository with HP tuners.

    I just realized I never opened that file to look at it. And yea I forgot HP reads Ecm/Tcm at the same time. So looks like 2 credits it is.
    This should be fun. Never done this with HP. Only helped my buddy's tune their stuff after all this kinda deal is already done.

    Guess once I flash this in there, I'll just have to load the current engine tune back to the ECM?