P3190 after cleaning intake manifold

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by KarolP, Mar 14, 2026 at 2:33 PM.

  1. KarolP

    KarolP New Member

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    Hello everyone,

    After cleaning the intake manifold and assembling everything, I am getting error P3190 and check hybrid system. MAP shows a about 90kPA and after 10 seconds the engine shuts down.

    I've probably tried everything. I checked the hoses and plugs. I blinded all the holes, EGR, EVAP, etc. Continuously MAP 90kPA.

    When I cover throttle with my hand, the MAP dropped to 20-25 kPA and the engine also shut down after 10 seconds.

    Anyone have an idea what to do next?
     
    #1 KarolP, Mar 14, 2026 at 2:33 PM
  2. bisco

    bisco cookie crumbler

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    I’d go back and retrace all my steps
     
    #2 bisco, Mar 15, 2026 at 1:11 PM
  3. bisco

    bisco cookie crumbler

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    And your engine isn’t running, just spinning over.
    Be careful, you can easily kill the hybrid battery
     
    #3 bisco, Mar 15, 2026 at 1:12 PM
  4. Mendel Leisk

    Mendel Leisk MMX GEN III

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    Check the PCV hose is connected intake manifold? That’s caught me.
     
    #4 Mendel Leisk, Mar 15, 2026 at 1:30 PM
  5. ASRDogman

    ASRDogman Senior Member

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    Blinded all the holes????? (n)

    A very common, and easily missed, is the pcv hose to the intake manifold.
    It's hard to see as you put the intake manifold on.

    Did you change the pcv valved?

     
    #5 ASRDogman, Mar 15, 2026 at 1:31 PM
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