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Cylinder 1 Misfire

Discussion in '1st Gen. Tacomas (1995-2004)' started by McJoe, Sep 17, 2012.

  1. Sep 17, 2012 at 11:04 AM
    #1
    McJoe

    #1
    McJoe [OP] New Member

    Joined:
    Sep 17, 2012
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    #87112
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    Male
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    99 tacoma 2.7 sr5
    hello, my dads 99 taco 2.7 is having a p0300 and p0301 code. i have already replaced the spark plugs, wires, and coils and still having trouble. what else should i look for?
     
    McJoe, Sep 17, 2012
    #1
  2. Sep 17, 2012 at 11:25 AM
    #2
    hayabusa3303

    #2
    hayabusa3303 Well-Known Member

    Joined:
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    Mike
    florence sc
    Vehicle:
    95.5 taco 4x4
    ARB bumper, warn 9.5 winch. carbon fiber hood. Leer top with thule racks and MOAB from thule. Electric fans, blue sea fuse block, Sony dvd Head unit, Xm tuner and HD tuner. New carpet and new racing seats. ( other half doesnt like them i think). Nwor springs and adjustable coil overs. Sky jacker rear shocks. Slot and drilled rotors. Engine Titanium ceramic coated headers, no cat, jba cat back. URD Rear Sensor Simulator. Leds all around and inside cab and HID H4 hi/lo beams.
    Do a compression check make sure cylinder 1 is not low. first

    check fuel filter? Bad injectors, Bad fuel, or fuel pump pressure is low also.

    Clean your maf. also.

    Reset the ecm. or pull the battery for about a minute. see if the code returns.
     
    hayabusa3303, Sep 17, 2012
    #2
  3. Sep 17, 2012 at 3:00 PM
    #3
    BamaToy1997

    #3
    BamaToy1997 Wheel Bearing Master

    Joined:
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    Bill
    Navarre, FL
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    best wheel bearings around! www.marionbumper2bumper.com
    X2
     
    BamaToy1997, Sep 17, 2012
    #3
  4. Sep 25, 2012 at 5:07 PM
    #4
    McJoe

    #4
    McJoe [OP] New Member

    Joined:
    Sep 17, 2012
    Member:
    #87112
    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 2.7 sr5
    Ok so the code came back after reset. put in new injectors and some fuel additive. after adding additive it runs worse and throwing new codes?! p1300 and p1310. those are are shorts in the wiring or ecm, but installed all new coils, wires and plugs. does this mean i have a bad ecm?
     
    McJoe, Sep 25, 2012
    #4
  5. Sep 25, 2012 at 5:10 PM
    #5
    McJoe

    #5
    McJoe [OP] New Member

    Joined:
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    Messages:
    4
    Gender:
    Male
    Vehicle:
    99 tacoma 2.7 sr5
    Also, the coils are aftermarket from Oriellys. should i have gone with the dealer on this one?
     
    McJoe, Sep 25, 2012
    #5

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