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P0300, P0304, P0306

Discussion in '1st Gen. Tacomas (1995-2004)' started by bldegle2, Dec 11, 2013.

  1. Dec 11, 2013 at 5:40 PM
    #1
    bldegle2

    bldegle2 [OP] OldPhart

    Joined:
    Apr 16, 2013
    Member:
    #102169
    Messages:
    1,645
    Gender:
    Male
    San Francisco, Ca.
    Vehicle:
    2009 Prerunner TRD AccessCab
    New Navigation DVD/CD/TV/AV/Bluetooth Stereo and seat mod spacers, 1" hubcentric spacers, seat heaters....
    I get this code maybe three four times a year, it usually happens with really wet and cold weather parked overnight, just happened two days ago after a freezing rain, next morning, all is good again and will stay like that for months, then it comes back...

    I know what the codes mean, multiple sparks misses, #4 cylinder miss and #6 cylinder miss..


    Now I have a new set of NKG wires and some dielectric grease, and I would imagine the spark plus wires are the original year 2000 parts as I have never changed them in 94,000 since I purchased the truck (235,000 total to date)...


    I did clean the Maf, put in new spark plugs (dual tip OEM's), that helped immensely in the beginning...


    Since it misfires on 4 and 6 I am hoping the wires will do the fix...it is unfortunate it happens so infrequently, maybe someone might be able to shed some light on this problem...


    Radiator levels are fine, no signs of moisture in either 4 or 6 when plugs are pulled after sitting overnight...


    Anyway, I don't ask for help too often, hardly ever, hoping for more ideas..


    And, yes, I have searched and read many threads on codes, this one is baffling it is so infrequent....


    Thanks
     
    Last edited: Dec 11, 2013

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