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Thread: 4L80 question about limiting 1-2 shift

  1. #1
    Senior Tuner Lakegoat's Avatar
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    4L80 question about limiting 1-2 shift

    2012 E38, 2006 4L80E
    When in 1st gear, trans shifts to second. I need to tune that out. I am using the same tune as my previous 4L80, but it doesn't work on this one. Also want trans to hold second gear when in "2". I read where the Gen 3 had Urban shift, but this tune does not have that. See attached. Screen shots are D1, D2 and Safety shifts. Thanks
    Attached Images Attached Images
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8

  2. #2
    Senior Tuner TheMechanic's Avatar
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    Run it through BlueCat.

  3. #3
    Senior Tuner Lakegoat's Avatar
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    I tried downloading the program, but got to extract zip file and it stops and says I need some other program from Windows. Tried that and it says cannot download.
    Anyway, I don't need my tables changed, just the shift to second gear deleted.
    2000 Camaro SS 2015 L83 port injected, Whipple 3.0, 4L80E, 8.8 Ford
    2013 Silverado 5.3, 6L80k 8.8