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P0401 code help needed

Discussion in 'Gen 3 Prius Care, Maintenance & Troubleshooting' started by 2010_Prius_Bro, Jun 13, 2023.

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  1. 2010_Prius_Bro

    2010_Prius_Bro Junior Member

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    Vehicle:
    2010 Prius
    Model:
    III
    Here is a picture of the "new" aftermarket EGR valve that never worked and continued to produce the P0401 code. The mechanism is different as you can see. It has a sealed system. I couldn't see a way of opening it up. Aftermarket EGR valve.jpg
     
    #61 2010_Prius_Bro, Jul 7, 2023
  2. C-in-DC

    C-in-DC Member

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    Location:
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    Limited
    Same as the aftermarket one I bought off of eBay! It’s so odd because I would hear the engine stall when I did the egr step test but it actually wouldn’t open or close.

    I think @ChapmanF wants to see the inside of the new oem.
     
    #62 C-in-DC, Jul 8, 2023
  3. 2010_Prius_Bro

    2010_Prius_Bro Junior Member

    Joined:
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    Location:
    maryland
    Vehicle:
    2010 Prius
    Model:
    III
    These aftermarket EGR valves are trash! Such a waste of time to have to install and uninstall these just for nothing.

    I don't know about opening a brand new OEM. That's a very expensive proposition! Interested as well to see one though but I can't afford it.
     
    #63 2010_Prius_Bro, Jul 8, 2023
  4. ChapmanF

    ChapmanF Senior Member

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    Indiana, USA
    Vehicle:
    2010 Prius
    Model:
    IV
    It's super easy to open and look. Surely someone will be so bold! What's happened to all the folks who'll buy a five-figure car and immediately start modding it?

    Loosening two screws to look in an EGR valve is tame.
     
    #64 ChapmanF, Jul 8, 2023
    Paladain55 likes this.
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