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exhaust check engine

This is a discussion on exhaust check engine within the External Engine forums, part of the LSx Technical Help Section category; will the check engine light come on with just catback exhaust...

  1. #1
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    exhaust check engine

    will the check engine light come on with just catback exhaust

  2. #2
    Member RARON455's Avatar
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    No, should not even be an issue, If you dont touch the O2 sensors the engine will never even know.
    But your ears and neighbors will know the catback is there

  3. #3
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    ^^ This.

  4. #4
    Electrical Engineer KMdef9's Avatar
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    Quote Originally Posted by RARON455 View Post
    No, should not even be an issue, If you dont touch the O2 sensors the engine will never even know.
    But your ears and neighbors will know the catback is there
    Quote Originally Posted by pajeff02 View Post
    ^^ This.
    ^^^


    If something did happen, get the codes scanned from your local autoparts store and let us know. Have them clear the codes and see if they reoccur.

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