P0057 Not Resolving

KaBoom Jul 11, 2020

  1. KaBoom

    KaBoom Test Drive

    Messages:
    18
    Location:
    Beckley, WV
    Had a P0057 code for a while. Today I jacked up the X and got the multimeter. Did some diagnostics per the fsm. Battery voltage was 12.45 - voltage through the harness connector was 12.1. thinking that was because of a not perfect ground (used the exhaust ground behind the cat). Tested the harness on the sensor. Resistance between terminals 2 and 3 was 11.1 ohms, no continuity between the others. 15 A fuse is fine. No visible damage to the harnesses and wires on either side. Its an NTK O2 sensor. Maybe Rock Auto sent me a bad cat.

    '09 OR

    Any other ideas?
     
  2. TerryD

    TerryD Total Tease Supporting Member

    Messages:
    2,487
    Location:
    Covington, Va
    That's a heater circuit issue, I don't think the cat has anything to do with it. I think that's measured in the IPDM at the output though? Not sure where to tell you to look at the moment.

    Were your measurements within spec?
     
    Last edited: Jul 13, 2020
  3. KaBoom

    KaBoom Test Drive

    Messages:
    18
    Location:
    Beckley, WV
    Yes, the measurements were within the fsm specs.
     
    TerryD likes this.
  4. TerryD

    TerryD Total Tease Supporting Member

    Messages:
    2,487
    Location:
    Covington, Va
    Have you cleared the code and it's returned?
     
  5. KaBoom

    KaBoom Test Drive

    Messages:
    18
    Location:
    Beckley, WV
    Yes. Two days ago i cleared it with my blue driver. drove around for a bit, and rescanned. Came back.
     
  6. KaBoom

    KaBoom Test Drive

    Messages:
    18
    Location:
    Beckley, WV
    Replaced the sensor; so far after 8 miles no code. Replaced a NGK I bought off Amazon with a NGK bought at Advance Auto. I'll see what more miles do.
     
    TerryD likes this.

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