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Thread: OS Mismatch error between e38 files

  1. #1
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    Default OS Mismatch error between e38 files

    I have a 2014 Camaro e38 ECM, operating system 12656198. I cannot get any other operating systems to full flash into it. Everything I have been trying is from the 2010+ column

    http://content.efilive.com/documents...ty%20Guide.pdf

    has something changed with the compatibility list?

    On the other hand does anyone have a camaro L99/6L80e stock file for OS 12656198 (the tune file dropbox doesn't have one)? Ultimately that's what I need this ecm to function as. Its in a swap so exact year isn't overly critical as far as the vehicle is concerned. Thanks!

  2. #2
    Lifetime Member GMPX's Avatar
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    12656198 & 12656930 are compatible.
    The document is probably not 100% accurate these days and as noted in it, no longer updated.
    I no longer monitor the forum, please either post your question or create a support ticket.

  3. #3
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    They *are* compatible??? I wonder why I'm having trouble?

  4. #4
    Lifetime Member GMPX's Avatar
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    Yes, just those two I listed are compatible to switch between and the software should not complain on either of those.
    I did look but unfortunately I don't have file with either of those OS's to suit an auto.
    I no longer monitor the forum, please either post your question or create a support ticket.

  5. #5
    Lifetime Member izaks's Avatar
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    Only have 12656930
    Attached Files Attached Files
    2011 VE SSV 419 + CAM + Whipple 2.9FF SC + PPV front struts + Bilstein rear shocks + 6L90E with single piece carbon fiber prop

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