1. Welcome to Tacoma World!

    You are currently viewing as a guest! To get full-access, you need to register for a FREE account.

    As a registered member, you’ll be able to:
    • Participate in all Tacoma discussion topics
    • Communicate privately with other Tacoma owners from around the world
    • Post your own photos in our Members Gallery
    • Access all special features of the site

Truck running funny :/

Discussion in '1st Gen. Tacomas (1995-2004)' started by yodabeast99, Jan 13, 2012.

  1. Jan 13, 2012 at 9:48 AM
    #1
    yodabeast99

    yodabeast99 [OP] New Member

    Joined:
    Jan 13, 2012
    Member:
    #70559
    Messages:
    2
    Gender:
    Male
    Vehicle:
    99 prerunner
    k&n intake
    hey everyone im new to the forum and im in need of some help. about a couple weeks ago i noticed when i take my truck out to do errands or what not, i turn off the truck, do whatever i have to do come back turn my truck on and it starts idling rough and when i put it in gear its really jumpy and hesitating when i get on the gas. It only does it when i turn the truck on after it had time to warm up. it's perfectly fine when its cold. i threw a CEL yesterday and put my code reader on it and it gave me a p0300 and 301 which is a random misfire on cylinder 1. anyone know what it could be since it only does it when its warm?
     
  2. Jan 13, 2012 at 9:54 AM
    #2
    tan4x4

    tan4x4 Well-Known Member

    Joined:
    Nov 30, 2011
    Member:
    #67982
    Messages:
    1,978
    Gender:
    Male
    First Name:
    Rick
    Folsom, CA
    Vehicle:
    99 Tacoma EC 4x4 2.7L Auto
    Bilsteins, OME 881's, 3-leaf AAL, Detroit TruTrac, 31" tires, Michelin LTX AT2, stock gears, Tranny skidplate, TC skidplate, CBI rear bumper, sliders, UltraGauge, PowerTank, CB
    Any black smoke right after starting?
    Does the idle smooth out after a minute or so?

    If so, it could be a leaking injector for cylinder #1.
    While its sitting the the parking lot, the residual pressure
    causes fuel to drip into the cylinder, and run real rich
    for a minute.
     
  3. Jan 13, 2012 at 10:00 AM
    #3
    yodabeast99

    yodabeast99 [OP] New Member

    Joined:
    Jan 13, 2012
    Member:
    #70559
    Messages:
    2
    Gender:
    Male
    Vehicle:
    99 prerunner
    k&n intake
    no black smoke. when its warm it will stay running rough. i thought maybe a egr valve i dont think my truck has one.
     
  4. Jan 13, 2012 at 10:05 AM
    #4
    4WD

    4WD cRaZy oLdmAn

    Joined:
    Jul 2, 2009
    Member:
    #19185
    Messages:
    22,316
    Gender:
    Male
    First Name:
    Doug
    Gardnerville, Nevada
    Vehicle:
    No Truck
    Grey wire MOD, deck plate, diff breather MOD, 2nd gen. OME 883# on Tundra 5100's, OMD custom 3" leafsprings, rear shock relocation, Ivan Stewart TRD rims w/285/75/16's, '02 bumper MOD, Famous Fabrications sliders , LED interior/exterior lights, bed bar, Custom tube bumper, Old school KC day lighters,Red Ring 8" HID flood, Kenwood vhf 2M.. umm some other shit I'm forgetting right now
    Pretty sure no EGR... Clean your MAF sensor...;)
     
  5. Jan 13, 2012 at 10:10 AM
    #5
    Rusty 06 4x4

    Rusty 06 4x4 NBHNC

    Joined:
    Sep 26, 2011
    Member:
    #64142
    Messages:
    2,195
    Gender:
    Male
    First Name:
    Rusty
    West Georgia
    Vehicle:
    2006 4x4 Tacoma TRD DCSB
    that^^^
     
  6. Jan 13, 2012 at 10:13 AM
    #6
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

    Joined:
    Dec 18, 2008
    Member:
    #11714
    Messages:
    48,164
    Gender:
    Male
    First Name:
    Ben
    Beech Creek
    Vehicle:
    05 Tundra SR5, 88 SR5 PU, 98 TRD OR (CRUSHED)
    5100's all on fours
    Basics on trouble shooting a 300 series CEL code:

    Inspect the plug for cracks/bad electrodes (check gap: should be .039-.043")/loose connector
    Replace (all) if anything cracks are found or if the electrodes are worn


    Swap coils with another cylinder/Reset code/see if code number changes
    If it changes to the cylinder the coil was swapped to, it's the coil.
    If it doesn't change, it's the plug or injector.

    Repeat above process with injector if none of the above worked
     
  7. Jan 13, 2012 at 1:19 PM
    #7
    tan4x4

    tan4x4 Well-Known Member

    Joined:
    Nov 30, 2011
    Member:
    #67982
    Messages:
    1,978
    Gender:
    Male
    First Name:
    Rick
    Folsom, CA
    Vehicle:
    99 Tacoma EC 4x4 2.7L Auto
    Bilsteins, OME 881's, 3-leaf AAL, Detroit TruTrac, 31" tires, Michelin LTX AT2, stock gears, Tranny skidplate, TC skidplate, CBI rear bumper, sliders, UltraGauge, PowerTank, CB
    Seems to be temperature-related.
    Could be one of the temp sensors telling the computer that
    its still cold, even after it warms up.
     
To Top