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Thread: need help with trans tune

  1. 07-16-2009 #1
    rcsfastgto
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    need help with trans tune

    I installed a 4l80 in my 05 gto need some help ,I keep getting TCM codes is there a way I can turn them off,list of codes included in the attachment,I am not using the factory TCM so I would like to turn all of this off..any help
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  2. 07-21-2009 #2
    EC_Tune
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    If you are friendly with a dealership, they can flash in the TCM cal for a truck with a 4L80E. Then the TCM can run the trans as well.
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  3. 07-25-2009 #3
    FraggerCrue
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    Quote Originally Posted by EC_Tune View Post
    If you are friendly with a dealership, they can flash in the TCM cal for a truck with a 4L80E. Then the TCM can run the trans as well.
    Will HPT correctly tune the TCM then? Does it hook up to the stock wire harness?
    Last edited by FraggerCrue; 07-25-2009 at 09:24 PM.
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