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Throttle Body Fast Probblems

This is a discussion on Throttle Body Fast Probblems within the General Help forums, part of the LSx Technical Help Section category; WELL TRIED TO TURN OFF BATTERY WHEN INSTALLED IT TURNED ON LET CAR IDLE THEN TURNED IT BACK OFF FOR ...

  1. #1
    Junior Member
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    green
    1998 trans am

    Throttle Body Fast Probblems

    WELL TRIED TO TURN OFF BATTERY WHEN INSTALLED IT TURNED ON LET CAR IDLE THEN TURNED IT BACK OFF FOR A MINUTE THEN IT IDLED FINE TOOK IT FOR A RUN AND THE TRANSMISSION WAS SHIFTING WAY TO SOON SO I KNEW IT WAS NOT WORKING RIGHT SO BUT STOCK BACK ON IT RUNS OK ANY BODY HELP HATE TO SPEND 400 BUCKS AND NOT GET TO USE IT WHAT NEEDS TO BE DONE WHAT WOULD A CUSTOME TUNE DO WILL A HYPERRTECH POWERPROGRAMMER WORK TRIED IT IT DID NOT NEED HELP ANYBODY PLEASE

  2. #2
    Member camaross19973's Avatar
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    blue
    1999 camaro ss #976

    did u hook the cable back to were they belong.

  3. #3
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    green
    1998 trans am

    There Is Two Hole In The Fast Tb Were The Cable Can Go It Will Only Go In The First One And It Is Firm And I Give A Little Gas The Butterfly Moves If I Floor It It Opens Wide Open

  4. #4
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    you could try to do an idle relearn. Set the emergency brake and let it idle in park with a/c off for a few minutes then in park with the a/c on for a few minutes then in gear with a/c off and with a/c on. Doubt that'll fix it but it's something you could try. Did you make sure that you got the bellows back on good and there are no air leaks post MAF?

  5. #5
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    did the fast TB come with new sensors or are you swapping in your stock sensors?

  6. #6
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    1998 trans am

    it came with some buti tried them and the old ones same result

  7. #7
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    what size TB is it?78mm or 90mm?

  8. #8
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    green
    1998 trans am

    78mm

  9. #9
    Senior Member Wheeler99WS6's Avatar
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    black, 05 Roush
    black, 99 T/A WS.6

    huh......I honestly would of figured that the 78mm would bolt up with no problems.

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