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Code 2, Oxygen Sensor on PW0 OBD0

Discussion in 'HYBRID -> ED-EF / DA' started by Mattyg2, Jun 28, 2008.

  1. Mattyg2

    Mattyg2 Junior Member

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    I keep getting a code 2 on my PW0 OBD0 b16a setup in my 1991 integra, I know for sure its plugged up and i also get the bogging or hesitation when cruising. I've also switch the wires so many times and still the same. Even when i switch the wires it's still code 2 after resetting the ecu, why is it always code 2 and not code 1 for primary oxygen sensor if i switched them? is something wrong here? Well, I ordered a new oxygen sensor that should be coming in a few days so I'm hoping that works. Are there any other things i should look into also if that doesn't fix it?
     
  2. INJEN78

    INJEN78 HS LEGEND

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    if its not the o2 sensor itself then there might be a fuckup in the wiring
     
  3. fixed4 life

    fixed4 life New Member

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    You need to add a 2nd O2 sensor and wire it to the ecu or splice both O2 sensor wires together and run it on one O2 sensor . Im sure all JDM obdo ecu's run on a primary and secondary O2 sensor. Each one reads their own pair of cylynders. On your pwo ecu C8 (plug C pin 8) would be the secondary O2.
     
    Last edited: Jul 2, 2008
  4. B16RacerN2NR

    B16RacerN2NR Working Hard VIP

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    Bad idea. Even Hondata says so:

    Tech - Closed Loop

     
  5. monotech

    monotech Member

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  6. Mattyg2

    Mattyg2 Junior Member

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    i've bought new o2 sensors and i still get code 2, even when i switch the wires it still comes out to code 2! and i get stupid bogging when crusing. i don't get what the problem is and i'm stumped
     
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