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Codes P0441, P0455, P0456 came up

Discussion in '2nd Gen. Tacomas (2005-2015)' started by valkener, Jan 13, 2020.

  1. Jan 13, 2020 at 5:29 AM
    #1
    valkener

    valkener [OP] Member

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    Took my Tacoma in for emissions inspection and oil change to a trusted mechanic. They said this code came on, but emissions passed anyway so registration was renewed.

    Could this be as simple as the gas cap or is this more involved? Mechanic said perhaps the canister needs to be replaced, but to check with dealership. Any advice? Also, anyone know a mechanic in PA that has dealt with these exact codes.

    Thanks!
     
  2. Jan 13, 2020 at 5:58 AM
    #2
    Wattapunk

    Wattapunk Stay lifted my friends !

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    I would start with checking to make sure the gas cap is tight or even replace it, clear the code and see if it comes back. Also check for the condition of the hoses but next item would be the canister purge valve if needed.
     
  3. Jan 13, 2020 at 6:45 AM
    #3
    b_r_o

    b_r_o We need to talk about your flair

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    10+ yr old gas cap.. replace it, clear codes, see if codes return. Cheap first step

    Use a OEM cap
     
    REDdawn6 likes this.
  4. Jan 13, 2020 at 9:40 AM
    #4
    REDdawn6

    REDdawn6 Well-Known Member

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    I got an OEM cap from Amazon, was like $18
     
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  5. Jan 13, 2020 at 10:59 AM
    #5
    valkener

    valkener [OP] Member

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    I actually got this one a year ago. I know I dropped it a few times. Also, my wife overfilled after the first "click" unfortunately. But it sounds like I need to replace the gas cap asap just to find out.
     
  6. Jan 13, 2020 at 11:02 AM
    #6
    valkener

    valkener [OP] Member

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  7. Jan 13, 2020 at 6:33 PM
    #7
    SilverFox15

    SilverFox15 Member

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    Check out the link below.

    https://www.700r4transmissionhq.com/p0441-toyota-tacoma/

    But like b_r_o said, go with the cheap fix first. Unless you cracked the cap after dropping it a few times will cause the CEL but I would check the fuel cap O-ring too, if you see cracks on the O-Ring then that might be your problem.
     
  8. Jan 13, 2020 at 9:26 PM
    #8
    Tacoian

    Tacoian Well-Known Member

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    Try gas cap first. Then look into other options. I’m still having trouble with mine but I think I’m a special case lll
     
  9. Feb 15, 2020 at 1:40 PM
    #9
    kn61408

    kn61408 Retired old fart

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    TnShooter likes this.
  10. Feb 17, 2020 at 2:01 AM
    #10
    TACOMA2NDGEN

    TACOMA2NDGEN Well-Known Member

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    Also clean the spout of the filler neck . Just a little bit of grim will cause air to get sucked in.
     

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