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Thread: 1999 Silverado 1500 - New ECM Flash Upload Quick Question

  1. #1
    Potential Tuner
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    Mar 2019
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    Greensboro, NC
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    1999 Silverado 1500 - New ECM Flash Upload Quick Question

    I had to get a new ECM for my truck and want to upload my tune from my previous box. I purchased the credit and it keeps telling me I can't write to my new ECM. What do I need to do?

    I uploaded the verification ID and it shows on HPT I have the credit for this, but keep getting the ATTENTION!!! message at the top when I try to write.

    Appreciate the help!

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
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    13,533
    Just license the new computer with 2 credits and use the compare feature to copy over the data in your previous tune to this new computer.
    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
    Potential Tuner
    Join Date
    Mar 2019
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    Greensboro, NC
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    Thanks!


    Quote Originally Posted by 5FDP View Post
    Just license the new computer with 2 credits and use the compare feature to copy over the data in your previous tune to this new computer.