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P0133 O2 Sensor Circuit. Ever replace one?

Discussion in 'General Explorations!!' started by Hummerford, October 2, 2002.

^^Searches ExplorerForum.com^^
  1. Hummerford

    Hummerford New Member

    October 2, 2002
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    City, State:
    Chesapeake, VA
    Year, Model & Trim Level:
    1998 E.B.
    I have had the Check Engine light on for a while on my 1998 E.B Explorer. I finally broke down and went to Autozone and had it read. The guy told me it was a P0133 code (O2 Sensor Circuit, slow response, bank 1 sensor 1) and that I had a faulty sensor on the driver side, forward of the convertor.

    Question one: What is Bank 1, Sensor 1?

    Question two: I think I need to replace my HO2s-11. Any suggestions or recommendations out there? Should I replace both at the same time. Is this a difficult replacement?

    Question three: Does anyone have any experience with this same problem?

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