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2010 Prius CEL P0139

Discussion in 'Gen 3 Prius Main Forum' started by zfk110, Aug 15, 2022.

  1. zfk110

    zfk110 Junior Member

    Joined:
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    Location:
    Atlanta, Georgia
    Vehicle:
    2010 Prius
    Model:
    Two
    I got 2010 with 160k miles, now I just got P0139 with CEL someone has any info which part number and how to replace it? Is it DIY? Where its located? Cleaning it will help? Or I have to replace it?
     

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    #1 zfk110, Aug 15, 2022
    Last edited: Aug 15, 2022
  2. Tombukt2

    Tombukt2 Senior Member

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    Durham NC
    Vehicle:
    2009 Prius
    Model:
    Base
    I believe that's downstream O2 sensor if you're messing with that you should replace them both and get the proper parts and make sure they go in the right place don't mix them up That's your best thing to do when you start getting up into the high mileage areas just replace the pair you can replace one if you want and then the other one will code next week so you can get under your car twice or once is the way to look at that basically
     
    #2 Tombukt2, Aug 15, 2022
    zfk110 likes this.
  3. bisco

    bisco cookie crumbler

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    call a dealership for price and part numbers, then look online at olathe and camelback
     
    #3 bisco, Aug 15, 2022
  4. zfk110

    zfk110 Junior Member

    Joined:
    Feb 2, 2014
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    Location:
    Atlanta, Georgia
    Vehicle:
    2010 Prius
    Model:
    Two
    This is the part number O2 Oxygen Sensor 234-4400 for it, IDK Amazon selling one for $120, eBay selling them for $16 to $26
     
    #4 zfk110, Aug 16, 2022
  5. Tombukt2

    Tombukt2 Senior Member

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    Vehicle:
    2009 Prius
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    Base
    You should be able to find denso or the good boss units real ones in the $56 range or something like that was easy they sit so long in the car to me it seems like it's worth paying that I wouldn't want to pay $90
     
    #5 Tombukt2, Aug 16, 2022
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