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Thread: E38 and E67 Auto Transmission type

  1. #1
    Fuel Injected!
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    E38 and E67 Auto Transmission type

    I'm not sure it matters as I have seen stock cals that don't match but I always like to match everything up to help the CAN since in most swaps we don't have a BCM as well as other things. Special thanks to John at TunerCat for the info.

    Yes, these calibrations have an Auto Trans Type parameter that can have the following values:

    2 Automatic 3-speed
    4 Automatic 4-speed
    5 Automatic 4-speed 4L60E
    6 Automatic 4-speed 4L80E
    7 Automatic 4-speed 4T40E
    8 Automatic 4-speed 4T45E
    9 Automatic 4-speed 4T60E
    10 Automatic 4-speed 4T80E
    11 Automatic 4-speed 4T65E
    12 Automatic 5-speed 5L40E
    16 Manual 3-speed
    32 Manual 4-speed
    43 Automatic 4-speed 4T65E TUTD
    64 Manual 5-speed
    128 Manual 6-speed
    129 Automatic 6-speed 6L45E
    130 Automatic 6-speed 6L50E
    131 Automatic 6-speed 6L80E
    132 Automatic 6-speed 6L90E
    133 Automatic 6-speed HM6T65E
    134 Automatic 6-speed HM6T80E
    -Carl

  2. #2
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    Interesting. So what does this change in the cal? Does switching from 4L60E to 4L80E invoke correct shift logic and input/output pins for the larger transmission?

  3. #3
    Fuel Injected!
    Join Date
    Nov 2017
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    I'm not quite sure what it does. I saw an 08 corvette cal that said 5L40e and the trans was a 6L80e.

    I just finished a car that had an 2014 LS3 engine and ecm but an '08 15 pin 4L60e and t42. When I first started on the project the ecm said it had a 6L80e and the trans program was doing all kinds of weirdness. I threw away both programs, started from scratch, set the ecm for 4L60e and all worked out fine in the end so I don't know if the setting helped or if the trans cal was that jacked up.
    -Carl

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