Question about 2002 Honda CR-V

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Oxygen sensors on 2002 Honda CR-V

I replaced both oxygen sensors and the engine light came on again after just 40 miles.  I reset the computer and I still get the codes P1166 and P1167.  What is the problem?

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  • Anonymous Mar 17, 2014

    OBD-11 CODE IN MANUAL DO NOT MATCH HONDA DEALER CODE P1166 FAILURE OF OXGYEN SENSOR

  • Anonymous Mar 19, 2014

    The truck dies intermittently when it worms up, Replaced full pump and oxygen sensor

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P1166 pertains to the upstream O2 sensor heater circuit. P1167 pertains to the upstream O2 sensor output.

Posted on Sep 24, 2008

  • Legin Varghese
    Legin Varghese Sep 24, 2008

    that could mean that you have a bad upstream
    sensor, or it could be as simple as two (or more) of the four wires
    being chaffed together, wires broken, poor connections (most likely
    dirt/corrosion at the four pin connector), simply a bad ground, etc.

    The
    only way to know for sure is to have someone with a proper scan tool
    (not a generic code reader) and the knowledge to use it to check the
    datastream and then probably follow up with a pinout chart and a DVOM.


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