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Reply To: 2008 Dodge Avenger Running Very Poorly

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July 18, 2020 at 10:53 pm #961580
Woody WoodwardWoody Woodward
Participant

    I removed the throttle body and cleaned it with throttle body cleaner and it made a HUGE difference. The car runs really good now.

    Now I’m showing two codes. Looks like I may need to replace the O2 sensors. Kind of strange how both sensors would be malfunctioning. Anyone have instructions on how to test the O2 sensors?

    P0031 – H02S heater control circuit low (sensor 1)
    P0038 – H02S heater control circuit high (sensor 2)

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