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



Vicki1149, Elkhorn, WI, July 20, 2011, 16:12

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

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  • Answer #1

    July 21, 2011, 07:47

    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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