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Getting a p3400 code on my 2004 toyota tundra

Discussion in '1st Gen Tundras (2000-2006)' started by proecadgod, Sep 29, 2022.

  1. Sep 29, 2022 at 6:39 AM
    #1
    proecadgod

    proecadgod [OP] New Member

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    Anyone get this code? Seems to be related to a cylinder deactivation
     
  2. Sep 29, 2022 at 9:12 AM
    #2
    shifty`

    shifty` He Switched From Rum to Whiskey

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    Which engine is in your 2004 Tundra having this issue?

    Never seen that one, and don't see others here. Nothing I see in an '05-'06 Toyota FSM either. Best I could do is same as you and spitball based on Google search.

    I wasn't even aware the 1st Gen engine choices were able to deactivate cylinders. Thought that was only on newer vehicles...
     
  3. Sep 29, 2022 at 9:19 AM
    #3
    Mustanley

    Mustanley Two time totaler

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    Eibach Shocks/Coils|Doug Thorley Headers|Spintech 3000XL Muffler
    I think it is more likely a P0340 or P0430 code
     
  4. Sep 29, 2022 at 10:09 AM
    #4
    proecadgod

    proecadgod [OP] New Member

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    No it came up as P3400, but the reader I have is one of those cheaper bluetooth ones you can buy at walmart so its probably not accurate. I have a friend that works at Meineke so I'll have him scan it there.

    Oh and my engine is the 4.7L
     
  5. Sep 29, 2022 at 10:21 AM
    #5
    shifty`

    shifty` He Switched From Rum to Whiskey

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    (see signature for truck info)
    Any big-box auto parts stores will usually also do free scans/clears if you don't want to wait. Auto Zone, O'Reillys, Advance, etc.
     
  6. Sep 29, 2022 at 10:54 AM
    #6
    Mustanley

    Mustanley Two time totaler

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    2004 Limited TRD 4x4 DC
    Eibach Shocks/Coils|Doug Thorley Headers|Spintech 3000XL Muffler
    What app did you scan with? Try the Car Scanner ELM OBD2 app by OvZ if you are using Android. Might give different results. It has been accurate in my experience compared to both Torque Pro and DashCommand.
     
  7. Sep 29, 2022 at 11:17 AM
    #7
    proecadgod

    proecadgod [OP] New Member

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    2004 Tundra SR5 Double Cab
    None

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