Codes P3190, P3191 after replacing EGR cooler, egr switch, intake manifold

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by FrugalBeeotch, Oct 24, 2025 at 11:40 PM.

  1. FrugalBeeotch

    FrugalBeeotch Junior Member

    Joined:
    Jan 5, 2019
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    Location:
    People's Republic of Seattle
    Vehicle:
    2013 Prius Plug-in
    Model:
    N/A
    I spent 9 hours replacing the egr system and the intake manifold. When I started the car, it said there's a problem with the hybrid system, and threw P3190 and P3191.

    Any idea what I did? I'm a little deflated. I thought I could do this. I clearly made a mistake.

    I left it at the diy garage overnight.
     
    #1 FrugalBeeotch, Oct 24, 2025 at 11:40 PM
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