No fuel after head gasket replacement

Discussion in 'Prius v Care, Maintenance and Troubleshooting' started by Jenkem_Enjoyer, Dec 12, 2025 at 8:28 PM.

  1. Jenkem_Enjoyer

    Jenkem_Enjoyer New Member

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    As the title says, I just replaced the head gasket in my 2014 Prius V, with apx 275k. I've done several had gasket replacements, although this is my first on a prius. Everything went well (I thought) and seemed to go back together A-OK. Trying to start and I'm getting the following codes P300 (Multiple Cylinder Misfire) P301 (Cylinder 1 Misfire) P302 (Cylinder 2 Misfire) & P219A (Air-Fuel Ratio Imbalance).

    I can hear the fuel pump running when I open the door or try to turn on the car. Suspecting that I was not getting fuel to the rail, I popped open the connector on the fuel line and it was bone dry; nothing coming out. I initiated the fuel pump (tapping brakes) and nothing came out.

    I've done a lot of digging online, and I'm not finding anything. Do you need to prime or flood the fuel rail? If so, how?

    Thanks in advance.
     
    #1 Jenkem_Enjoyer, Dec 12, 2025 at 8:28 PM
    Last edited: Dec 12, 2025 at 8:37 PM
  2. Mendel Leisk

    Mendel Leisk MMX GEN III

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    That sounds like the brake booster.
    Cylinder one and two are “traditional” head gasket failure points. Maybe the head/block interface warped? With 275k miles, it could could have had head gasket failure for sometime; they can fail as early as 150k.

    EGR cleaned?

    the misfire codes need an extra zero btw: it’s P0301, for example.
     
    #2 Mendel Leisk, Dec 13, 2025 at 5:54 AM
  3. BiomedO1

    BiomedO1 Senior Member

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    The filter sock on your fuel pump intake may be clogged; so you'll have to pull it to check. I would check the fuel pump fuse and relay first.
     
    #3 BiomedO1, Dec 13, 2025 at 9:42 AM
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