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Check Engine light vs. Service Engine light

This is a discussion on Check Engine light vs. Service Engine light within the Computer & Tuning forums, part of the LSx Technical Help Section category; I have a 2002 Fierhawk TA. I recently installed a set of long tube headers, ORY, and a SLP loudmouth ...

  1. #1
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    2002 Trans Am Firehawk

    Check Engine light vs. Service Engine light

    I have a 2002 Fierhawk TA. I recently installed a set of long tube headers, ORY, and a SLP loudmouth II on it. I had it tuned at Wester's Garage, and recently my service engine light is coming on. Once i shut the car down it goes off. It is the light at the bottom left side of the tach ( not the check engine light ). My MAC scan tool says there is no code set, so what could be turning this light on? Any help would be great!

  2. #2
    Moderator Cutlass's Avatar
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    1999 Formula WS6 M6-sold
    2001 Silverado Z71

    look a little closer, I think you'll find out it says "Service Vehicle" or "Service Vehicle Soon"
    Refer to this thread for help
    Service Vehicle Soon light

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