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Thread: cant connect to ecm

  1. #1
    Senior Member
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    Default cant connect to ecm

    I was loading a tune and the battery went dead in the laptop and i charged it and went back to load the tune now it wont connect to the ecm it atttempts 10 time then say it lost connection

  2. #2
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    any one i need to get the truck back up and running is the ecm fried?

  3. #3
    Senior Member JustinD's Avatar
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    Just do a full reflash it will tell you its in an unknown state but it should take the full reflash, at least the ones I've done.
    2001 Chevrolet K2500HD Duramax
    Suncoast SCIV 1056
    Kennedy twin lift pumps
    Billet pick up
    MBRP 4" exhaust
    Air intake horn mod
    ARP head studs
    A few more go fast/truck pulling goodies!
    Tuned with EFI
    12.65 @ 107 1.71 60'

  4. #4
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    ive done it it wont work and ive tried alt keys and nothing is working it just says that it lost connection

  5. #5
    Senior Member JustinD's Avatar
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    Did you try a FULL REFLASH?? Its under the flash menu, then there are 2 reflash options use the "program pcm operating system and calibration" I think since you disrupted it you'll need a full reflash now?? If not maybe someone will have more info. Good luck man.
    2001 Chevrolet K2500HD Duramax
    Suncoast SCIV 1056
    Kennedy twin lift pumps
    Billet pick up
    MBRP 4" exhaust
    Air intake horn mod
    ARP head studs
    A few more go fast/truck pulling goodies!
    Tuned with EFI
    12.65 @ 107 1.71 60'

  6. #6
    Lifetime Member Dmaxink's Avatar
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    Default

    for giggles...unplug your batter for a while and try it again...also, is your battery pretty much fully charged now? I have seen the battery have low power and have this issue
    -Kory

    I'm out of ideas? Nah trick... When in doubt, 0xFFFF it out!

    http://www.PPEI.com/

  7. #7
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    thats what ive always have used a full flash

  8. #8
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    yea every thing is charged up now just tried it and it said the same thing

  9. #9
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    any ideas?

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