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Thread: Cannot Write tune but can edit

  1. #1
    Potential Tuner
    Join Date
    Nov 2008
    Location
    Southern IN
    Posts
    5

    Cannot Write tune but can edit

    I bought 2 credits today and linked them to a 2010 GMC Denali. I was able to edit the tune but when I go to write the vehicle it says I do not have a license for this vehicle. It even shows under Help/ License Information that it is licensed. Am I doing something wrong?

  2. #2
    Tuning Addict 5FDP's Avatar
    Join Date
    May 2012
    Location
    Rogers, MN
    Posts
    13,513
    Probably because when you did a read the first time you also read the FPCM that costs 1 more credit.

    Go re-read the truck but only select the PCM and TCM on the menu. Then copy over your changes to that file and try to write it.
    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
    Nov 2008
    Location
    Southern IN
    Posts
    5
    That was it. I have never had that before. Thank you very much!!!!!

  4. #4
    Tuner in Training
    Join Date
    Apr 2019
    Posts
    13
    I bought a mpvi2 a while back and have no issues till last night at the track, was test n tune and it said unlicensed vehicle. So i bought 2 credits and synced , then tried again to flash and it still said unlicensed vehicle. checked my lap top, checked the latest software and all is current, will read and edit, just no writing.....wont even give me a popup to license....any ideas?

  5. #5
    Potential Tuner
    Join Date
    Sep 2019
    Posts
    1
    I have the same issue. Any fix yet?

  6. #6
    Advanced Tuner
    Join Date
    Oct 2019
    Posts
    285
    thats what i was doing wrong!