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i have a 2010 bmw 328i throwing a 2c3e code, oxygen sensor 2 before catalytic converter line fault what does that mean?

i have a 2010 bmw 328i throwing a 2c3e code which means oxygen sensor 2 before catalytic converter line fault what does that mean

4 Answers

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  • 2 months ago

    Go to an auto part store and have them read the codes with their code reader to get "P" codes. I have no clue how you got that code and don't trust it for diagnosing your vehicle.They scan for codes for free.

    Source(s): Mitsubishi Master Tech
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  • 2 months ago

    No power or signal from the O2 sensor.

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  • Anonymous
    2 months ago

    You will need to check O2 sensor operation with a scanner.  Check O2 sensor heater resistance.  Check O2 sensor heater wiring integrity with a test light with a scanner with directional control capability.  O2 sensor could be bad or there is a wiring problem.

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  • arther
    Lv 5
    2 months ago

    look at the wiring to the sensor first. prove its good.

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