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Thread: I can't seen to get my H/T tune back to stock so I can re tune it.

  1. #1
    Tuner in Training Jeetuning's Avatar
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    I can't seen to get my H/T tune back to stock so I can re tune it.

    Hi guys I have a 2003 GMC sierra 2500HD, I had a programmer H/T from witch is when I got the truck, and I added headers I can see its burning rich, I can't seem to put it back to stock it won't run, not sure why, Does that matter? do I just read the tune and go from there.

    sorry just learning

    James

  2. #2
    Tuning Addict 5FDP's Avatar
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    If it runs with whatever tune was on it previously you can just leave it that way I guess. Then read entire the file and tune it from there. So long as it's not tuner locked with the previous tuner.

    Ideally starting from stock is best.
    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
    Tuner in Training Jeetuning's Avatar
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    Ok, I'm not sure what happened to the stock tune?? it does all kinds of weird stuff??

    thanks for your time

    James