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Thread: Need help Preparing vcm Failed.

  1. 01-17-2012 #1
    4.8turbo
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    Need help Preparing vcm Failed.

    I tuned my truck and used two credits now truck wont start and it wont let me read the computer its says Preparing VCM Failed then Boot Loader requested time out anyone know the problem...
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  2. 01-17-2012 #2
    Bill@HPTuners
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    Bootloader timeout errors are usually battery or wiring related issues.
    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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  3. 01-17-2012 #3
    Montecarlodrag
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    Put a new battery or a charger and try again
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