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2013 Prius Misfire codes and o2 sensor

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by Radiotech92, Jun 21, 2022.

  1. Radiotech92

    Radiotech92 Junior Member

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    2013 Prius 2 85k had egr valve replaced and Both o2 sensors now I have codes p0352 p0354 p0037 p0032 and it misfired so much that the check hybrid pull over when safe came on and the engine shut off. Has anyone else experienced this issue I’m scared it’s the head gasket
     
    #1 Radiotech92, Jun 21, 2022
  2. JC91006

    JC91006 Senior Member

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    at 85k miles, what made you decide to replace the EGR valve and 2 oxygen sensors?
     
    #2 JC91006, Jun 21, 2022
  3. Radiotech92

    Radiotech92 Junior Member

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    I had a p0032 code and heard a loud pop when the sensor got pulled it had a white spot on it and the egr valve was sticking I had a lot of carbon build up
     
    #3 Radiotech92, Jun 21, 2022
  4. JC91006

    JC91006 Senior Member

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    Can you describe which sensor gave a "loud pop"? I don't understand how a sensor could create a loud pop sound.

    Are you the original owner of this car? There should not be a significant amount of Carbon buildup on a car with the few miles you have on it. Unless the odometer has been turned back.

    Did you use original Denso parts for your oxygen sensors? If the Air/Fuel sensor is not an original part, it could explain the misfires and poor power issues.
     
    #4 JC91006, Jun 21, 2022
  5. Radiotech92

    Radiotech92 Junior Member

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    I am the third owner of the car got it from Carvana and I remember when I hit the brakes I heard a loud pop and then the check engine light came on and no I didn’t do denso sensors I got it from rock auto
     
    #5 Radiotech92, Jun 21, 2022
  6. Radiotech92

    Radiotech92 Junior Member

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    Also it was reading originally p0032 for the code
     
    #6 Radiotech92, Jun 21, 2022
  7. bisco

    bisco cookie crumbler

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    #7 bisco, Jun 21, 2022
    Last edited: Jun 21, 2022
  8. JC91006

    JC91006 Senior Member

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    Well I believe your issues are with spark plug or coils. Which is rare to have with a car with so few miles. But I would check the spark plugs and coils, if they are bad, replace them. Then if things are still not right, then I would address the non original air/fuel sensor you put in from Rock Auto
     
    #8 JC91006, Jun 21, 2022
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