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p1133 help?

This is a discussion on p1133 help? within the General Help forums, part of the LSx Technical Help Section category; i have one trouble code and its p1133. i dont know wat this is and how do i fix it? ...

  1. #1
    Junior Member
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    1999 Trans am

    p1133 help?

    i have one trouble code and its p1133. i dont know wat this is and how do i fix it? thanks

  2. #2
    Veteran 0rion's Avatar
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    98 Formula
    06 duramax

    insufficient switching, do you have headers? That's a fairly common code with headers.

  3. #3
    Member DaddySS's Avatar
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    2000 Camaro SS Conv.

    Reset the PCM or if you have autotap etc. clear the code. Details of your car?

  4. #4
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    1999 Trans am

    no headers stock basically slp lid cold air package and descreened maf I also got p1153

  5. #5
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    1999 Trans am

    what it the switching bank if this code is on will my car run slower?

  6. #6
    Senior Member
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    2013 Infiniti G37

    Is it not the rear o2 sensor? Dont think the rear 02 will effect performance. Either replace or get o2 sims.

  7. #7
    Senior Member
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    1133 and 1153 is insufficient switching on both banks, both front 02s. Don't know if descreening the MAF is the cause.

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