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Engine codes! What fun!

Discussion in '4th Gen 4Runners (2003-2009)' started by StreamSmith, Jun 24, 2020.

  1. Jun 24, 2020 at 6:10 PM
    #1
    StreamSmith

    StreamSmith [OP] New Member

    Joined:
    Jun 18, 2020
    Member:
    #14984
    Messages:
    9
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    Male
    Vehicle:
    08 V8 4x4 Limited Galactic Grey 4Runner
    Hey experts, today I got in the truck and noticed as I took off the check engine, TC, and VSC off where all on and the VSC blinking.
    Pulled codes as following:
    P0171
    P0441
    P0455
    P0441
    P0455

    any thoughts? No weird smells, detectable leaks or driving problems, but it does seem to be running hot, which makes sense from those codes. Also, is it normal to be getting two of the same codes twice? Thanks
     
  2. Jun 24, 2020 at 6:44 PM
    #2
    MI-FL off roader

    MI-FL off roader T4R Hobby/Addict

    Joined:
    Aug 21, 2015
    Member:
    #878
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    1,192
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    Male
    First Name:
    Brett
    Merritt Island, FL
    Vehicle:
    03' SR5 Sport - 12' Limited
    Too many mods and too much money
    Vacuum hose could have a leak. The other codes are in the evap canister/fuel system venting. When you get fuel, do you top off with as much as you can put in it?
     
  3. Jun 24, 2020 at 7:10 PM
    #3
    StreamSmith

    StreamSmith [OP] New Member

    Joined:
    Jun 18, 2020
    Member:
    #14984
    Messages:
    9
    Gender:
    Male
    Vehicle:
    08 V8 4x4 Limited Galactic Grey 4Runner
    I've only had it for a little over a week, but I drive a ton for work, so I've fuled (generally dont let it go past a 1/4 tank) a few times, and filled it up.
     
  4. Jun 25, 2020 at 2:24 AM
    #4
    MI-FL off roader

    MI-FL off roader T4R Hobby/Addict

    Joined:
    Aug 21, 2015
    Member:
    #878
    Messages:
    1,192
    Gender:
    Male
    First Name:
    Brett
    Merritt Island, FL
    Vehicle:
    03' SR5 Sport - 12' Limited
    Too many mods and too much money
    The previous owner might have done this, when your filling up with fuel and you top it off all the way up to the brim in the filler neck/hose, the evap canister gets saturated with fuel through the vent tube, which in turn causes issues with the system as a whole. When the evap can charcoal filter gets saturated, the vent system does not work properly and causes the problem. The PO probably cleared the codes and they now have shown up again due to the ECU going through several diagnostic cycles since you don't drive it a lot. The vacuum leak could be unrelated and is causing a mild lean condition, which might cause it to run a little warm. Get a code reader and check them fairly often until you get it fixed. You want to keep an eye out for lean conditions, because they can cause other more serious problems. Hopefully you get it sorted out soon. Good Luck and Welcome.
     
    Last edited: Jun 25, 2020
    StreamSmith[OP] likes this.

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