2013 Prius

Discussion in 'Newbie Forum' started by Al h, Nov 7, 2021.

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  1. Al h

    Al h Junior Member

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    Hello,

    I have a 2013 Prius. It has 2 codes:
    P0455 & P0441.

    Any idea/help is appreciated-thx.
     
    #1 Al h, Nov 7, 2021
  2. bisco

    bisco cookie crumbler

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    make sure the gas cap is tight
     
    #2 bisco, Nov 7, 2021
  3. Al h

    Al h Junior Member

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    I did, don’t think that’s the issue. Any other suggestions?
    Thx.
     
    #3 Al h, Nov 7, 2021
  4. rjparker

    rjparker Tu Humilde Sirviente

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    Big leak in the evap system. Do you smell gas in the back or at the engine? Visually inspect.
     
    #4 rjparker, Nov 7, 2021
  5. Al h

    Al h Junior Member

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    Not sure. I’ll drive it and try to see if I smell any gas.
     
    #5 Al h, Nov 8, 2021
  6. Al h

    Al h Junior Member

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    So I smell gas from the back.
     
    #6 Al h, Nov 10, 2021
  7. rjparker

    rjparker Tu Humilde Sirviente

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    Be sure the gas cap is clicked on. Next step is a shop with a lift to find the leak. Probably a vapor hose.
     
    #7 rjparker, Nov 10, 2021
  8. Al h

    Al h Junior Member

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    I actually replaced the gas cap which I got from Autozone and probably drove for about 80 miles in total or so, but the check engine light never turned off and I had the same two codes even after replacing the gas cap with a new one from Autozone.
    P0455 &
    P0441
     
    #8 Al h, Nov 10, 2021
  9. Al h

    Al h Junior Member

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    Am I supposed to clear the codes? Or will it clear on its own?
    Also do you think perhaps the gas cap from Autozone is not the exact fit so that’s why the codes remain?

    Thanks in advance.
     
    #9 Al h, Nov 10, 2021
  10. bisco

    bisco cookie crumbler

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    i think you have to cycle the car (drive it) a certain amount of times to clear the codes.

    autozone gas cap could be a problem, just depends on the design.
     
    #10 bisco, Nov 10, 2021
  11. Al h

    Al h Junior Member

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    Do I need to clear the codes though? Or they’ll clear on their own after driving for awhile assuming the gas cap is the issue?
     
    #11 Al h, Nov 10, 2021
  12. bisco

    bisco cookie crumbler

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    not sure if they will clear on their own. if the light goes off, see if they are still there.
     
    #12 bisco, Nov 10, 2021
  13. Al h

    Al h Junior Member

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    So I probably drove 90-100 miles already with the new cap and no change or clear codes.
     
    #13 Al h, Nov 10, 2021
  14. bisco

    bisco cookie crumbler

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    how many drive cycles have you done? was the old cap bad in some way?
     
    #14 bisco, Nov 10, 2021
  15. Al h

    Al h Junior Member

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    Drive cycles? You mean how many times did I turn the car on and off???
     
    #15 Al h, Nov 10, 2021
  16. Al h

    Al h Junior Member

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    Probably 4/5 times
     
    #16 Al h, Nov 10, 2021
  17. Al h

    Al h Junior Member

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    4/5 times within the 90-100 miles I’ve driven after replacing the gas cap
     
    #17 Al h, Nov 10, 2021
  18. bisco

    bisco cookie crumbler

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    starting to sound like the evap system
     
    #18 bisco, Nov 10, 2021
  19. Al h

    Al h Junior Member

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    Yup, rjparker on this thread is suggesting the same thing. So I guess that can literally mean anything from the canister to the hoses, etc.
     
    #19 Al h, Nov 10, 2021
  20. bisco

    bisco cookie crumbler

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    what code reader are you using? idk if tech stream and/or the service manual can help nail it down or not
     
    #20 bisco, Nov 10, 2021
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