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  1. 12-25-2008, 11:25 PM #1
    Bigck4
    Bigck4 is offline
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    Red
    1999 z28

    Check engine light

    Why when it rains i get a check engine light with codes of p1133 and p1155. I have long tube slp headers
    Last edited by Bigck4; 12-26-2008 at 02:34 AM.
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  2. 12-26-2008, 12:07 AM #2
    JoshieDoom
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    79 T/A -91 Firebird
    1998 Trans Am -Oynx Black

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    Bank 1 and Bank 2 Oxygen sensor issues. Most likely your getting them wet. Im having rain issues as well.

    Check the connectors and make sure they are good and full of dieletric grease. Should cure it. If not you will need newer o2s.


    and the technical BS

    http://gearchatter.com/viewtopic8822...2ba33e1e1f50be

    I cant find the p1155, but I bet its bank 2.
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  3. 12-26-2008, 02:22 AM #3
    Bigck4
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    What's are your issues in the rain?
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  4. 12-26-2008, 02:28 AM #4
    JoshieDoom
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    Missfiring, stumbling. Wierd Idle, doesnt affect performance tho No codes being thrown as well tho.
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