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serious engine studdering all of a sudden

This is a discussion on serious engine studdering all of a sudden within the General Help forums, part of the LSx Technical Help Section category; ya i changed out the fuel filter last year. ya i guess ill take all the plugs out and check ...

  1. #21
    Member
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    black
    1998 Camaro SS

    ya i changed out the fuel filter last year. ya i guess ill take all the plugs out and check them and check all the wires. the car does not have cats. pacestter longtubes ORY.

  2. #22
    Smiles for 9.5 Years cammed goat's Avatar
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    Phantom Black Metallic
    2004 GTO M6

    OK. Now I ask you this...when you tuned the car, did you turn off the rear O2 sensors? You might need rear O2 simulators. The rear O2s may be goin haywire as you don't have cats.

  3. #23
    Impounded
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    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

    Quote Originally Posted by cammed goat View Post
    OK. Now I ask you this...when you tuned the car, did you turn off the rear O2 sensors? You might need rear O2 simulators. The rear O2s may be goin haywire as you don't have cats.
    Nah. Been going without both for a long time. Rear 02s are only there to monitor.

  4. #24
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    I'm guessing the tune needs finished. The mail order tune will only get you so far. Probably fouling plugs and or O2 sensors........that would be my guess.

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