Help with P2238 code / O2 sensor?

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by PsychicNumb, Oct 20, 2021.

  1. PsychicNumb

    PsychicNumb New Member

    Joined:
    Aug 10, 2021
    10
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    Location:
    Knoxville, Tennessee
    Vehicle:
    2013 Prius
    Model:
    III
    I recently had a mechanic swap out the motor in my 2013 Prius (the previous one had a blown head gasket). I thought that the swap went well as I have already driven 1000 miles with no noticeable issues. However, the check engine light is on with code P2238: O2 Sensor Positive Current Control Circuit Low Bank 1 Sensor 1

    The check engine light was on when I received the car back from the mechanic, but I assumed it was still on from the misfiring due to blown head gasket, and he just didn't take the time to clear it. Is the O2 sensor thing a common issue to get triggered after something like a motor swap? Does it seem likely that it is a serious issue to have looked at? What would the symptoms be?

    I know I need to just take it back to the mechanic to inquire, but English is not his native language, so he is pretty hard to communicate with. I just wanted to get a read on this forum. Thank you,
     
  2. Abraham Marcus Warren

    Joined:
    Sep 18, 2021
    4
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    Location:
    27.7479424, -82.7654144
    Vehicle:
    2013 Prius
    Model:
    V
    Sorry you didn't seem to get any responses!! I'm searching for people's advice/experience on a 2013 engine swap right now . . . for exactly the same reason (blown head gasket)
    Did you ever get yourself resolved? Good luck !
     
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