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2009 Tacoma OBD2 Code P0306 Help

Discussion in 'Technical Chat' started by kshap448, Jun 24, 2012.

  1. Jun 24, 2012 at 8:04 AM
    #1
    kshap448

    kshap448 [OP] 2009 Double Cab TRD 4x4

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    #80366
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    John
    Arkansas
    Vehicle:
    09 TRD 4x4 Double Cab
    I know that this means that cylinder six is misfiring but which cylinder is number 6? I am going to change the plug and coil and see if this helps. Have any of you ever had this problem? I also have run Lucas fuel injector treatment before and was wondering if this could be the problem that I am having? I have only used it about 8 times in 3 years. I was also told it could be the gas. It does not sound like the engine is misfiring at all but I am getting awful gas mileage. Around 16 or 17 at best. Any help would be greatly appreciated. Thanks for all of your help.

    Hap Campbell
     
  2. Jun 24, 2012 at 8:17 AM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
    Tenoe, AZ
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    4.10 gears, sliders, and lots of buttons.
    #6 is Driver side, nearest to firewall. DO NOT run Lucas addative, or any for that matter, in your vehicle. Use a quality fuel, and you should be fine.
     
  3. Jun 24, 2012 at 9:25 AM
    #3
    kshap448

    kshap448 [OP] 2009 Double Cab TRD 4x4

    Joined:
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    #80366
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    6
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    Male
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    John
    Arkansas
    Vehicle:
    09 TRD 4x4 Double Cab
    Thank you. I bet that it was the additive that has created this issue. I am going to change the plug and then switch wires and see if that works. I have also read that it can be an oxygen sensor, fuel injector, burned exhaust valve, faulty catalytic converter, poor compression and or a defective computer. I sure hope it the plug. I really appreciate your help.

    Thank you so much.

    Hap
     
  4. Jun 24, 2012 at 11:54 AM
    #4
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

    Joined:
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    FlimFlubberJAM
    Tenoe, AZ
    Vehicle:
    2019 Rubicon 4 Door,
    4.10 gears, sliders, and lots of buttons.
    Glad to help! Welcome to TW!
     
  5. Jul 6, 2012 at 4:59 PM
    #5
    kshap448

    kshap448 [OP] 2009 Double Cab TRD 4x4

    Joined:
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    6
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    Male
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    John
    Arkansas
    Vehicle:
    09 TRD 4x4 Double Cab
    Come to find out that the computer kicks out that code when to my dismay the oil resorvoir cover is under the driver side headlamp and you are running on 1/2 quart of oil. I had my oil changed at a local tire shop. I will never do this again. Changed the oil and filters a couple of times and deleted the code and reset the computer and I am still having no issues with the motor. If you can do it yourself, you should. Other people do not give a shit about your stuff. Thanks for all of the help. I just wanted to let you know.
     
  6. Jul 6, 2012 at 5:33 PM
    #6
    Rich91710

    Rich91710 Well-Known Member

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    Los Angeles
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    08 Base
    Satoshi with FJ badge, factory cruise, factory intermittent wipers, Redline Tuning hood-lift struts, Hellwig Swaybar, Rosen DVD-Nav
    :eek:

    Not the first time I've heard that.
    I had a Toyota dealer leave my radiator cap on top of the intake manifold.

    My trick?

    Any caps or covers are placed on top of the hood latch.
    Can't close the hood until the cap is replaced.
     

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