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Thread: Need some help with a T87

  1. #1
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    Default Need some help with a T87

    I have a swap done, L86 and 8L90 in a 67 Camaro. I had to buy the ECM and TCM separately from the drivetrain because they were not included. The ECM works fine but the TCM is setting codes. From what I understand it either needs the correct VIN and or 8L90 program with the specific solenoid info on the side of the trans case. Can anyone help me out? The GM dealer is saying they won’t flash a used TCM.
    Last edited by blackdog76; December 1st, 2021 at 03:02 PM.

  2. #2
    Joe (Moderator) joecar's Avatar
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    Default

    Which specific DTC codes is the TCM setting?

  3. #3
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    Quote Originally Posted by joecar View Post
    which specific dtc codes is the tcm setting?
    p0700
    u0100
    u0101

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