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  1. #1
    Junior Member
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    Aug 2005
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    Red
    1998 Trans Am Ws6

    Service engine soon light?

    I just recently installed long tube headers and y-pipe on my car. And now the service engine soon light is on. Is this common??

  2. #2
    Senior Member
    Join Date
    Jul 2005
    Location
    Jacksonville, FL
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    2,723
    Yes, especially if you deleted the cats - did you keep the AIR and EGR? Get the codes read free at some place like auto zone and post them.

  3. #3
    Member jmhvenom's Avatar
    Join Date
    Oct 2005
    Location
    Cincinnati, OH
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    38
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    821

    Silver
    2002 Z28

    did you get O2 sims? Did you put the O2 extensions in? Tune it at all? Pretty easy one to fix... probably forgot a combination of these...

  4. #4
    Junior Member tsench's Avatar
    Join Date
    Oct 2005
    Location
    Mississauga
    Age
    42
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    84
    tune it out about 50 bucks

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