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P3190 code troubleshooting

Discussion in 'Gen 2 Prius Care, Maintenance and Troubleshooting' started by OC63RAG, Aug 14, 2021.

  1. OC63RAG

    OC63RAG Member

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    Are there any apps that give a definitive cause to this error code? It sounds like it covers multiple potential causes but you still need to check the components one by one.

    In this example, ‘08 with half a tank of gas, 190K miles, one year old refurb HV battery, driving along and the engine cuts out and the check engine light came on. Starts back up and seems ok, drove to Autozone to get it scanned and the P3190 shows up.

    I’ve searched and it I can’t find a solution. Thanks for any help.
     
    #1 OC63RAG, Aug 14, 2021
  2. JC91006

    JC91006 Senior Member

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    The engine normally cuts out on the Prius, so how is this a problem? The check engine light is usually emissions related
     
    #2 JC91006, Aug 14, 2021
    Raytheeagle likes this.
  3. Raytheeagle

    Raytheeagle Senior Member

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    How's the fuel pump doing:whistle:?

    I'd start there(y).
     
    #3 Raytheeagle, Aug 14, 2021
    OC63RAG and JC91006 like this.
  4. dolj

    dolj Senior Member

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    No.
    That's because any one of those things could be the problem.
     
    #4 dolj, Aug 14, 2021
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