P0455 Code
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  1. #1
    KWP Services kwpservices has not yet proved knowledgeable
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    Question P0455 Code

    I keep getting a P0455code - "Evaporative emission (EVAP) system large leak detected Hose connection(s), intake leak, EVAP canister, EVAP canister purge valve" - am wondering if buying a new gas tank cap might be the answer. Have a sneaking suspicion it may have a hairline crack or be damaged.

    Would appreciate any thoughts-feedback.

    Cheers

    Kate

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  3. #2
    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: P0455 Code

    I'd say its either the evap canister or the purge valve on the back side of the intake manifold.
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  4. #3
    Acountabilibuddy ricerrx7 knows a lot about Elantras
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    Default Re: P0455 Code

    You can guess all you want, but without a smoke test, it would be hard to tell.
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  5. #4
    Super Moderator Cypher knows a lot about Elantras Cypher's Avatar
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    Default Re: P0455 Code

    I know that, but they asked for thoughts
    2002 Hyundai Elantra: Sold
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    1992 Toyota MR2: Sold
    1991 Nissan 240sx Coupe: Future KA-T
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  6. #5
    Acountabilibuddy ricerrx7 knows a lot about Elantras
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    Default Re: P0455 Code

    I know. I was giving the OP my thoughts.
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  7. #6
    Player to be named later Doohickie has picked up a wrench Doohickie's Avatar
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    Default Re: P0455 Code

    Inspect around the canister (left rear of car, behind the rear wheel). See if there is an obvious cracked or loose hose.
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  8. #7
    turbo envy only1db has picked up a wrench only1db's Avatar
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    Default Re: P0455 Code

    sounds stupid...but i see it all the time...did you fill the car up while it was running? or not tighten the gas cap down?

    if i were you i would clear the code and if it comes back then perform a leak test of hte evap system.

    start there....


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  9. #8
    KWP Services kwpservices has not yet proved knowledgeable
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    Default Re: P0455 Code

    Quote Originally Posted by only1db View Post
    sounds stupid...but i see it all the time...did you fill the car up while it was running? or not tighten the gas cap down?

    if i were you i would clear the code and if it comes back then perform a leak test of hte evap system.

    start there....
    Thanks so much for the tip. HTE =??? -I'm still building my knowledge glossary Thanks again - I'm envious - Florida huh? it's -14 here with a windchill of -24 yuch! Cheers, Kate

  10. #9
    turbo envy only1db has picked up a wrench only1db's Avatar
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    Default Re: P0455 Code

    it not much better here in the shop its 50 with a windchill of about 40...being as it was about 80 two days ago...its chilly!!

    hte....is just me mispelling ****....you'll get used to it...hahaha


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  11. #10
    LeSabres not sharp. sciphi has not yet proved knowledgeable sciphi's Avatar
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    Default Re: P0455 Code

    If it's not anything they listed above, get out your wallet. It starts with the smoke test and goes up from there.
    Everything is good in moderation. Including moderation.

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