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  • O2 sensor location??

    i have this code,
    P0135 Heated Oxygen Sensor (HO2S) heater circuit Bank 1 Sensor 1

    where is the location of this O2 sensor ? so i can test it,or replace it

    thanks
    Dan

  • #2
    Re: O2 sensor location??

    Bank 1 refers to the first cylinder of the firing order. Sensor 1 refers to the upstream 02 sensor of that bank b4 the catalyst

    Is this correct??

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    • #3
      Re: O2 sensor location??

      bank 1 should be drivers side 02

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