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2000 Chevrolet Cavalier Question: What does code P0141 "post cat 02 sensor heater performance fault" mean

 

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Vicki1149, Elkhorn, WI, July 20, 2011, 13:12
 Rookie

This is what came back from my engine light coming on and being diagnosed.

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  • Answer #1

    July 21, 2011, 04:47
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     Journeyman

    for the po141.
    Replace oxygen sensor (cannot repair open or short that occurs internally to sensor).
    Repair short or open or high resistance in wiring harness or harness connectors.

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