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2010 Prius 187K engine code P0038 and P2237

Discussion in 'Gen 3 Prius Main Forum' started by RC12, Aug 24, 2018.

  1. RC12

    RC12 New Member

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    Vehicle:
    2010 Prius
    Model:
    III
    My 2010 Prius III been giving me problems. I am having the engine code P2273 and 0038. The dealer said replace both o2 sensor and it will solve the problem. They tried to charge me for $1000 dollars for replacing both sensors.

    I replaced them on my own, but the codes are still there. Please advise. My car has 187,000 Miles on it.
     
    amos likes this.
  2. Row Kam

    Row Kam Junior Member

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    Vehicle:
    2006 Prius
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    Hello did you find any solution to your problem ? My Mechanic said changing the engine module relay will possibly solv the problem ?
     
  3. bmk

    bmk New Member

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    Apr 14, 2019
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    Vehicle:
    2010 Prius
    Model:
    III
    hi .i got a prius 2010 when i drive some km there is like air suction in the engine and the gear start to fail and the triangle light on and engine light too and then i continue to drive with engine light on works perfectly, the ob2 scanner say battery fail,is it the e.c.u and inverter,..
    I REACH 143000KM
     
  4. bisco

    bisco cookie crumbler

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  5. The Critic

    The Critic Resident Critic

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    Vehicle:
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    This will be hard to fix without logging some data. I would like to see how the short/long term trims, MAF, air fuel sensor and rear o2 sensor behave under a variety of conditions.

    I suspect the issue has something to do with the MAF acting differently than what it is reporting and is causing the car to be over-fueled.
     
    Raytheeagle likes this.