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Cylinder misfire 2 and 3 random misfire.

Discussion in 'Technical Chat' started by Meangene, Aug 4, 2012.

  1. Aug 4, 2012 at 10:10 AM
    #1
    Meangene

    Meangene [OP] Member

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    I already replaced both coils and plugs and wires. It ran better code cleared but at an idle the rpm drops it starts running rough and the service light comes back on saying cylinder misfire 2 and 3 again
     
  2. Aug 4, 2012 at 10:12 AM
    #2
    NelsonTacoma

    NelsonTacoma This is my derpawayinator!!!!!

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    06 PreRunner TRD Sport 03 4Runner Limited 4wd
    Bilstein 5100's , 6000k HID Hi/Low Kit, Magnaflow Muffler, 1.5 inch AP Wheel Spacers, Mudflap Delete
    Did you do a compression test? Are you sure the coil is getting the signal from the PCM to fire? Is the spark plug actually firing? Those are the next things you need to check.
     
  3. Aug 4, 2012 at 10:26 AM
    #3
    Meangene

    Meangene [OP] Member

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    I haven't checked all that yet. It runs great on the highway and all over as long as I am moving. No codes or anything. It doesn't crank or idle well either. Could it be a dirty injector. Thinking of seafoam or heat in gas tank
     
  4. Aug 4, 2012 at 10:29 AM
    #4
    NelsonTacoma

    NelsonTacoma This is my derpawayinator!!!!!

    Joined:
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    Member:
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    Messages:
    2,095
    Gender:
    Male
    Tucson, AZ
    Vehicle:
    06 PreRunner TRD Sport 03 4Runner Limited 4wd
    Bilstein 5100's , 6000k HID Hi/Low Kit, Magnaflow Muffler, 1.5 inch AP Wheel Spacers, Mudflap Delete
    That's a good place to start. If it runs ok at higher RPMS then that could def be the problem.
     
  5. Dec 12, 2012 at 4:58 PM
    #5
    matthua

    matthua New Member

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    Matt
    Sunnyvale, CA
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    2000 Tacoma SR5
    Hello Meangene, I have the same exact symptoms and problem with mine now and I am wondering if you've fixed yours. If so, what did you do? I would appreciate if you or anyone can give me any advice.

    I've installed all 4 new plugs, 4 new coils, 4 new injectors and even new downstream O2 sensors.
     
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