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Thread: What ECM do I have E38, E40 ect..

  1. 07-30-2008 #1
    LBSBLOWN
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    What ECM do I have E38, E40 ect..

    My truck is a 2005 GMC Sierra how do I find out what ECM it has?
    2020 Jeep Trackhawk, Functional Demon Ram Air Hood, AFE CAI, SW Headers, SW Cats, Solo Cat back Exhaust.
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  2. 07-30-2008 #2
    brianko
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    Quote Originally Posted by LBSBLOWN
    My truck is a 2005 GMC Sierra how do I find out what ECM it has?
    Look at it. Seriously. Your 2005 will have the LS1-style PCM (large silver box). Service number is on a sticky right on the cover.
    ExaTorq Tuning and Performance (Dallas, TX)
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  3. 07-30-2008 #3
    Bill@HPTuners
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    LS1 style, P59 if im not mistaken
    It doesn't have to be perfect, it just needs to be done in two weeks...

    A wise man once said "google it"
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