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need help here please

This is a discussion on need help here please within the Performance forums, part of the General Discussion category; i have 92 silverado i need check for codes,i have 12 pin conector how do i do this?i dont no ...

  1. #1
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    need help here please


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    i have 92 silverado i need check for codes,i have 12 pin conector how do i do this?i dont no where to conect wire thanks zack

  2. #2
    has a manual! Whifflebat's Avatar
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  3. #3
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    Re: need help here please

    thanks i just did test i dont have any codes my light give me code 12 over and over i do have custom chip in truck from tbi chips no codes good?? or i am doing something wrong here ?

  4. #4
    GMC RULZZ NEUMANNZZ's Avatar
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    Re: need help here please

    no codes are good. code 12 is diagnostic circuit working properly. any problems wih the truck?
    O2 GMC RCSB 4.8L V8 AUTO 3.73's
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  5. #5
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    Re: need help here please

    well i got one problem my idle goes up and down i think its vacum

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