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Thread: Used PCM

  1. #1
    Potential Tuner
    Join Date
    Dec 2023
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    2

    Used PCM

    I am trying to swap a used PCM from a 2016 Mustang 5.0 into a 2017 F150 5.0. They are both TC-1791, I flashed the Mustang PCM with a F150 tune with the write entire operation, everything worked and shows up normally when read. When I put the mustang PCM into the F150 it won't start, no fuel pump prime, no clicks, nothing. Are there differences between these PCMs? Something I'm missing? Thanks.

  2. #2