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Tacoma 3.4 Low Idle, on start up and running.

Discussion in '1st Gen. Tacomas (1995-2004)' started by Anthony250, Jun 8, 2013.

  1. Jun 8, 2013 at 8:50 PM
    #1
    Anthony250

    Anthony250 [OP] E-Fabber

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    Okay so i have a99 V6 Auto , 3.4 mostly stock except for Afe Air filter with the Deck plate mod. And It has been running great , just recently it has been running funny, only on some start ups ,it starts and idles really low 400 rpm, usually my normal was about 550 ish. Some times it will start and idle like normal or sometimes it will start idle for a few seconds and die, when it does that i have to give it some gas and keep it going, once running it runs just fine, sometimes to I stop at a light and it will idle low. I suspected dirty air filter but i just had cleaned it, and dirty MAF sensor so I cleaned that which was very dirty, and it still does it. Any body care to chime in
     
  2. Jun 8, 2013 at 9:37 PM
    #2
    tacomataco2

    tacomataco2 Well-Known Member

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    Iac valve
     
  3. Jun 8, 2013 at 9:44 PM
    #3
    2000GTacoma

    2000GTacoma Well-Known Member

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    x2 pull it off and clean it with some throttle body cleaner.
     
  4. Jun 8, 2013 at 11:12 PM
    #4
    Anthony250

    Anthony250 [OP] E-Fabber

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    Where is it located?
     
  5. Jun 9, 2013 at 3:30 AM
    #5
    ARB1977

    ARB1977 Don't be a dick

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    It's located under the throttle body.
     
  6. Jun 9, 2013 at 9:59 AM
    #6
    PolishAndWax.com

    PolishAndWax.com Well-Known Member Vendor

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    X3

    Somebody just posted a PDF on removal and cleaning the IAC and TPS recently. If you can't find it, PM me with your email address and I'll email it to you.
     
  7. Jun 9, 2013 at 11:57 AM
    #7
    RJ MacReady

    RJ MacReady professional trousersnake charmer

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    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.
    THIS...
    are you throwing a CEL???
     
  8. Jun 19, 2013 at 12:23 PM
    #8
    mauibuilt41

    mauibuilt41 Active Member

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    I had this same problem and my truck was throwing a CEL. The code said a bad TPS sensor. I will be replacing that soon and let you know how that goes. Did cleaning the IAC valve help?
     
  9. Jun 19, 2013 at 12:36 PM
    #9
    Anthony250

    Anthony250 [OP] E-Fabber

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    Eagle Alloy's 058 on Goodyear BFG All Terrians . 265/75/16. Kenwood Stereo, 12" JL Audio Sub. Led Lighting interior. Led Turn Signals. Custom Bumper ,Total Chaos Long travel Sway away shocks, glassworks fenders, ,Spintech Super Pro street muffler, Hellas 500ff HID Converted, Window Tint,Black Emblems, Deckplate, , Deaver Prerunner Pack, Bilstein 7100's 12" SB's and Sway Away 2" Air Bumps
    Cleaning the IAC did the trick ,truck runs great agian. I had no CEL.
     
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