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Multiple cylinder misfire

Discussion in '1st Gen. Tacomas (1995-2004)' started by Brokenneck, Mar 24, 2024.

  1. Mar 24, 2024 at 5:29 PM
    #1
    Brokenneck

    Brokenneck [OP] Member

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    So I just replaced the spark plugs and coil packs and multiple sensors plus engine coolant sensor. Still misfiring I am not sure what to do next. I need my truck for work. Someone please help me figure this out.
     
  2. Mar 24, 2024 at 5:30 PM
    #2
    0xDEADBEEF

    0xDEADBEEF Swaying to the Symphony of Destruction

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    Which codes is it throwing?
     
  3. Mar 24, 2024 at 5:42 PM
    #3
    Brokenneck

    Brokenneck [OP] Member

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    1. Not it says mass air flow A circuit
    2. Intake Air Temperature sensor 1 circuit
     
  4. Mar 24, 2024 at 5:43 PM
    #4
    Brokenneck

    Brokenneck [OP] Member

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    Mass or volume air Flow A circuit.
     
  5. Mar 24, 2024 at 6:49 PM
    #5
    HazMatKat413

    HazMatKat413 Active Member

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    Confirm that your air cleaner housing and boot are all seated and sealing properly.

    If you have a scan tool, check the temperature, can't recall what its listed as, but I noticed my temperature reading was way out of whack after driving home, was either map or maf sensor, don't remember which but it was 2 torx head screws
     
  6. Mar 24, 2024 at 7:01 PM
    #6
    Steves104x4

    Steves104x4 Well-Known Member

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    BUCKLE UP! It makes it harder for Aliens to pull you out of your Truck.
    Being the parts cannon that I am, maybe clean or replace the egr valve.
     
    ControlCar and HazMatKat413 like this.
  7. Mar 24, 2024 at 8:06 PM
    #7
    Brokenneck

    Brokenneck [OP] Member

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    Thanks for the input guys I'll check it out and see what I can come up with.
     
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  8. Mar 25, 2024 at 1:12 PM
    #8
    Glamisman

    Glamisman Well-Known Member

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    While running disconnect either the electrical connector to the individual ignition coils or fuel injectors. If there is no change, reconnect and go to the next. If there ia a big change you have isolated the offending cylinder.
     
  9. Mar 25, 2024 at 2:00 PM
    #9
    HazMatKat413

    HazMatKat413 Active Member

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    Think you just swapped those...

    My understanding is if you unplug a properly FUNCTIONING coil or wire, you'll see a significant change.

    Whereas if you unplug a DEAD one, you'll see no significance change.
     
    Steves104x4 likes this.

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