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Thread: custom os ? for 1999 c5

  1. #1
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    Default custom os ? for 1999 c5

    what pin do i ground for a custom os for a 1999 corvette c5 i think its pin 56 not sure what connecter ,any help would be great .also this pin will need ground to flip to custom os correct? thanks mark

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    Lifetime Member ChipsByAl's Avatar
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