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Thread: Production car ECM used with GMPP harness?

  1. 03-12-2023 #1
    samckitt
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    Production car ECM used with GMPP harness?

    Does anyone know for a fact if a production E67 ECM can be used with a GM Performance Parts harness in place of the GMPP E67 ECM?
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  2. 03-13-2023 #2
    blindsquirrel
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    Sure. Will it work with no changes to the harness pinning? Probably not.
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  3. 03-13-2023 #3
    Alvin
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    Quote Originally Posted by samckitt View Post
    Does anyone know for a fact if a production E67 ECM can be used with a GM Performance Parts harness in place of the GMPP E67 ECM?
    I think it would. We experimented with one to get a auto working behind it and was using E67's flashed as production vehicles. I want to say maybe we found the cam sensor wiring off or wrong.. But I can't remember for sure.
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