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Error Code P1420, P1422.

Discussion in 'Gen 1 Prius Plug-in 2012-2015' started by tok16, Mar 15, 2023.

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  1. tok16

    tok16 Junior Member

    Joined:
    May 18, 2020
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    Location:
    Cambodia
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Base
    Dear All,
    I'm owning a Prius Plug-in 2012, there are around 120 000 miles on it. A few days ago after the car washes the engine light pop-up with the code P1420. I tried to change the gas cap seal and reset the code, but a few days after the engine light pop-up again with the code P1422. Is there anyone experienced these?
     
    #1 tok16, Mar 15, 2023
  2. LeviSmith

    LeviSmith Member

    Joined:
    Aug 19, 2009
    108
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    Location:
    NY
    Vehicle:
    2012 Prius Plug-in
    Model:
    Plug-in Advanced
    Good luck. It sounds like the codes I was getting on my 12' PIP when I got it. Had my mechanic try to patch/fix the evap canister, hoses in the area, used canister, etc. End result was wasting a lot of time and money before finally succumbing to buying a new canister for like $600 I think and having it installed. On mine it seemed the problem is just one little valve. But that valve is integrated into the canister along with another valve/solenoid, etc. So there's no cheap/simple way out of it.

    Hopefully you'll find yours is something else, less problematic!
     
    #2 LeviSmith, Mar 15, 2023
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