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Check Engine Light

Discussion in '1st Gen. Tacomas (1995-2004)' started by hodgey, May 22, 2013.

  1. May 22, 2013 at 4:01 PM
    #1
    hodgey

    hodgey [OP] Member

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    Kati
    north carolina
    Vehicle:
    04 PreRunner SR5
    Afe filter, deck plate mod,window vent visors, tint, plastic diped rims, plastic dipped bumper and front grill. Plastic dipped tool box, mag light mod, chime mod, and cluster lights changed.
    So my cel came on about a month ago. The charcoal canister was replaced. A day went by and it came back on. I have been researching the codes it is throwing. PO 441, 442,446. I am confused where to go from here. Vsv??? some input would be greatly appreciated. :D
     
  2. May 22, 2013 at 4:24 PM
    #2
    polack

    polack Well-Known Member

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  3. May 22, 2013 at 9:44 PM
    #3
    misterdmac

    misterdmac Well-Known Member

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    Doostin
    In or around the truck
    Vehicle:
    '97 2.7L DLX
    The tough thing about those codes is that there are *I THINK* 3 maybe 4 vacuum switch valves throughout the vacuum system. They all look really similar. There's one right next to the canister, should have a blue sticker on it if it's original, and then there's another under the intake manifold. For me, replacing the one under the intake mani took care of the 0441 code. You can pull the VSVs off and usually if they're still good you can actuate the valve with air pressure from your mouth. If you need to replace one, just find the right part and do it yourself, they just plug and play.
     
  4. May 23, 2013 at 6:05 AM
    #4
    Inverno4

    Inverno4 Well-Known Member

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    Baltimore, MD
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    I had the same problem last Fall. If you test each VS valve with a multimeter for continuity, it will point to the defective one. In my 04, there are 2 under the hood by the battery and one underneath by the charcoal canister, which is a bitch to get to. Mine, of course, was that one. The valve was stuck on it.
     
  5. May 23, 2013 at 9:50 AM
    #5
    hodgey

    hodgey [OP] Member

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    Kati
    north carolina
    Vehicle:
    04 PreRunner SR5
    Afe filter, deck plate mod,window vent visors, tint, plastic diped rims, plastic dipped bumper and front grill. Plastic dipped tool box, mag light mod, chime mod, and cluster lights changed.
    Thanks for all the replies. I am gonna check out the vsvs with my meter.
     
  6. Oct 7, 2013 at 11:06 PM
    #6
    JMayotte

    JMayotte Active Member

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    Jeremy
    Costa Mesa, CA
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    '01 TRD/OR V6 SR5 4X4
    Checked out your post, good info. My light came on while doing some very dusty off roading recently. Have yet to inspect since reading. But my thought is, those of us that live in states with emissions inspections regulations, find a good smog shop and see if they'll hook you up and do some diagnosing. I work on smog machines here in soCal and therefore plan on doing so. They have a smoke tester (evap tester) for older cars and can do a smoke test for much less than a dealer. And typically they have OBD-II scanners extremely handy. Also, they can check your gas cap to see how well it holds pressure..or not.

    Hope this helps a little, I'll repost about my findings.
     
  7. Oct 8, 2013 at 11:00 AM
    #7
    RJ MacReady

    RJ MacReady professional trousersnake charmer

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    RJ/Mike Hauncho/HeavyHands
    US OUTPOST North 31-Mayday Mayday! We've found som
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    Cheatin' bitch build 2: All stock for now... 99' Tacoma 4wd TRD Cheatin' bitch build 1: BG44K additive, motul 5w40(always), deckplate mod, K&N washable air filter, 2.5" flow master(cut thanks to Airdog), king fronts 2.5", all pro standard leaf pk, stainless steel rear ext brakeline, 5125's 10" travel rears, 4-jasper offroad 6" pod LED spot lights, secret compartment for small bottle of wild turkey, cobra CB, Hi-lift jack w/locking bed mount, hi lift curved bumper lift & road base plate, smittybuilt X20 winch, wab fab F&R bumpers w/ hitch receivers, smittybuilt 4in1 recov tool, 10gal mini flamethrower, 11 lbs dynamite sticks, 13 4-hr snowflares, .50Cal full auto mounted machine gun w/ RPG unit & a shitoad of death metal to fuckstart your brain...everything you need for first contact with a shape-shifting alien entity frozen for over 100,000 years reanimated & immitating all life it engulfs.
    thanks for the info. we all can use more smog techs here in SoCal
     
  8. Oct 9, 2013 at 6:18 PM
    #8
    JMayotte

    JMayotte Active Member

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    Jeremy
    Costa Mesa, CA
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    Not quite a smog tech. Just service their machines. Need no mechanical/automotive experience for that :)
     
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