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

2.4L Error Code P0300 #2 Misfire

Discussion in '1st Gen. Tacomas (1995-2004)' started by 98tcome, Jul 30, 2013.

  1. Jul 30, 2013 at 2:26 PM
    #1
    98tcome

    98tcome [OP] New Member

    Joined:
    Jul 30, 2013
    Member:
    #109420
    Messages:
    1
    Gender:
    Male
    Vehicle:
    1998 Tacoma SR5
    None
    Trouble with the 1998 Toyota Tacoma 2.4L truck. I have been dealing with issue for months with no resolve. Here we go........I start the truck when it is cold and it runs like new, as i warms up it starts missing, it is drive able, just idles ruff and eventually the "Engine Check Light" blinking and then a solid no blinking. It continues to run this way until it is parked and gets cold again. Here is the list of things i have done based on the OBD-2 scanner P0300 error.
    1.Replace all Plugs and wires.
    2.Replaced both Coils
    3.Moved a good fuel injector to the failing cylinder. (No Change)
    4.Compression 210psi
    5.LOOKED for intake leak!
    6.Brought it to a reputable, and they could not figure it out.
    7.So here i am puzzled on what to do next.
    8.Oh, cant leave the PCM out, that was the shops next thing to replace, i do not get it is the PCM.
    9.Timing Belt has not been replaced-it is probally due for it's first replacment.
    Has 115000 on it-and is in excellent shape.
    Here are the details and am hoping someone can point me in the right direction to get this figured out Thanks.
     
  2. Jul 30, 2013 at 2:37 PM
    #2
    JudoJohn

    JudoJohn Well-Known Member

    Joined:
    Oct 28, 2012
    Member:
    #89992
    Messages:
    232
    Gender:
    Male
    St. Louis
    Vehicle:
    96 Tacoma 2WD 5 speed
    P0300 is general misfire, not #2 cyl. that would be P0302. if you are sure the ignition side is good, then start looking at the fuel system.

    BTW- the 2.4 has a timing chain.
     
  3. Jul 30, 2013 at 2:40 PM
    #3
    HondaGM

    HondaGM Roll Tide

    Joined:
    Oct 28, 2009
    Member:
    #25056
    Messages:
    5,783
    Gender:
    Male
    First Name:
    James
    South-Pole
    Vehicle:
    09 DC 4x4 Blown Honda VTEC V8
    trd exhaust,step bars,vent visors,bed lights,tailgate mod
    what cylinder is missing?
     
  4. Aug 4, 2013 at 3:02 PM
    #4
    neegdogdig

    neegdogdig Untrained with bad experiences go go go!

    Joined:
    Mar 18, 2012
    Member:
    #75151
    Messages:
    1,674
    Gender:
    Male
    Vehicle:
    1st Gen DC V6 5Spd
    alrite, bro u and i are in the same boat. mine is 2.7l and yours is 2.4l.
    we both had the code P0300. i just found out that i had a leak down issue on plug 1 and plug 2. the explanation and conditions of your truck match mine 99.9% of the issue so i'm pretty damn sure that your problems and mines are identical, cylinder leakage inside the chambers. i'm planning to replace my cylinder head, timing chain and water pump. i recently found out that the timing chain is only good to 150k miles after that it will get loose, chip out and extended. this might cause the cylinders to go bad.
    hope this help you trouble shoot the issue faster. don't forget to update when the problem is fixed. thanks.
     
  5. Aug 4, 2013 at 3:12 PM
    #5
    ToyoTaco02

    ToyoTaco02 Well-Known Member

    Joined:
    Jan 21, 2011
    Member:
    #49667
    Messages:
    487
    Gender:
    Male
    First Name:
    Scott
    Decatur,IL
    Vehicle:
    02 PreRunner DC 2.7L
    OME 881 1/4" top plate spacer OME Dakars OME Nitrochargers Light Racing UCA
    Just wondering where did you find out the timing chain is only good for 150k?
     
  6. Aug 4, 2013 at 3:22 PM
    #6
    neegdogdig

    neegdogdig Untrained with bad experiences go go go!

    Joined:
    Mar 18, 2012
    Member:
    #75151
    Messages:
    1,674
    Gender:
    Male
    Vehicle:
    1st Gen DC V6 5Spd
    don't remember the site, but you can do research on Google.
     
  7. Aug 4, 2013 at 5:16 PM
    #7
    ToyoTaco02

    ToyoTaco02 Well-Known Member

    Joined:
    Jan 21, 2011
    Member:
    #49667
    Messages:
    487
    Gender:
    Male
    First Name:
    Scott
    Decatur,IL
    Vehicle:
    02 PreRunner DC 2.7L
    OME 881 1/4" top plate spacer OME Dakars OME Nitrochargers Light Racing UCA
    I just find that strange because the chain is basically a lifetime part. You can't always believe everything on the internet.
     
  8. Aug 4, 2013 at 5:21 PM
    #8
    zeekevin

    zeekevin Well-Known Member

    Joined:
    Jan 5, 2012
    Member:
    #70020
    Messages:
    1,929
    Gender:
    Male
    San Diego
    I had the same problem before on my 98 2.4 runs fine when cold, once warm the engine misfires, random misfire ran a bunch of test, and it ended up being a dead injector, pull them out and check the ohm resistance on them I forgot the exact value but they should be close with one another.
     
  9. Oct 10, 2015 at 7:13 PM
    #9
    shadeaux

    shadeaux Member

    Joined:
    Aug 16, 2015
    Member:
    #161953
    Messages:
    15
    Gender:
    Male
    First Name:
    Craig
    Vehicle:
    1997 Tacoma 2.4L L4 SOHC 16V
    I am having the same issue. After reading the suggestions and changing out lots of parts, still no joy.
    changed the:
    Throttle Position sensor (that I have to leave unplugged or i cant drive it)
    Crankshaft Position Sensor
    Plugs and wires
    distributor cap and rotor
    fuel filter
    fuel pump
    cleaned out the Idle Air control Valve
    cleaned out throttle body
    added injector cleaner
    ran through some sea foam
    changed oil and filter
    changed fuel presser valve

    Still haven't fixed things. Can use some advise! Spent a lot of money on parts and sensors, etc... just need my truck to work correctly again.
     
  10. Oct 10, 2015 at 8:05 PM
    #10
    CodeSeven

    CodeSeven Yo

    Joined:
    Aug 20, 2014
    Member:
    #136597
    Messages:
    1,973
    Gender:
    Male
    First Name:
    Serge.
    Coachella Valley
    Vehicle:
    '00 Taco 3.4 4x4 TRD ( <3), '06 Taco Prerunner 4.0 (totaled)
    3 inch lift. bluetooth stereo. blue transparent skulls shift knobs
    this guy is having the same problems. read up on that.
     
  11. Mar 10, 2019 at 11:06 AM
    #11
    Norcal Squirrel

    Norcal Squirrel New Member

    Joined:
    Mar 3, 2014
    Member:
    #124453
    Messages:
    3
    Gender:
    Male
    Cold air intake, high flow lower cat, Force muffler
    I have the Service Manual for my truck, 2003 Tacoma 2RZ, 2wd 5-speed. No where in there could I find a spec for life of timing chain. I called my local Toyota service department and asked them what their books said and they came back with, "its replaceable on an as-needed basis." I've had this motor rebuilt once, currently it has 309K on it.
     
  12. Mar 10, 2019 at 11:20 AM
    #12
    Norcal Squirrel

    Norcal Squirrel New Member

    Joined:
    Mar 3, 2014
    Member:
    #124453
    Messages:
    3
    Gender:
    Male
    Cold air intake, high flow lower cat, Force muffler
    So on my 2003, I'm getting P0300-303, which is a misfire, cylinders 1-3. I changed injectors, new plugs, coil packs. My truck had a rough idle for months when I did this. After these changes the first time I started it, there was no check engine light and I could hear it was running smooth. I let it get to operating temperature, and then shut it off. I was stoked. When I started it again, the chk light came back on as it had been for months, and the rough idle and bad mileage were back. I don't have intake or low cylinder pressure, but my code reader also mentioned 'Evaporative System Monitor', so looks like I'll be chasing that now. I live in stupid California, land of smog laws so I need to get this fixed in the next few months. If anyone has any input, please let me know.
     
  13. Mar 10, 2019 at 11:59 AM
    #13
    Glamisman

    Glamisman Well-Known Member

    Joined:
    Oct 22, 2016
    Member:
    #200436
    Messages:
    2,111
    Gender:
    Male
    the only thing left to do is a leak down test.
     

Products Discussed in

To Top