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codes 2441/2445; air switcching valve

Discussion in '2nd Gen. Tacomas' started by some zilch, Apr 8, 2013.

  1. some zilch

    some zilch [OP] New Member

    Joined:
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    ny
    Vehicle:
    08 taco base 4x4
    my truck (08, 4cyl, 5spd, base model, completely stock) has been throwing these codes. '
    2441-air switching valve stuck closed
    2445-air pump stuck off

    they are both related to some pump that injects air into the exhaust when the engine is cold to lessen emissions--completely unnecessary for truck operation and has no effect on driveability. But....i need the truck to pass inspection and it will not b/c the light is on.

    anyhow; does one of those issues "make" the other issue appear-- such as the "the switching valve stuck closed forces the pump to be off"?

    all hoses/wires are hooked up, both issues appeared at the same time. the pump costs over $900, and the valve costs $300ish. i hate to "throw parts' at the problem, but i am not familiar with this system.

    anyone have any insight?
     
  2. BlueT

    BlueT Well-Known Member

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    I moded 1999 Taco so much it had turned to Land Cruiser
    Check on Tundrasolutions. New 5.7 has similiar problems and these guys have ways fixing on cheap.
    I would say try cleaning it up first. if that does not work than replacement.
     
  3. pjchrisrvm

    pjchrisrvm Member

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    PA
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    13 TRD Off Road DC
    First thing to do is remove your air switching valve and see if you have rodent damage. I get a lot of trucks that have acorns or other rodent debris stuck in the valve.
     
  4. some zilch

    some zilch [OP] New Member

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    08 taco base 4x4

    i briefly saw some this mentioned elsewhere, but did not realize the systems were similar...thanks

    sounds goood, i will take it out this weekend
     
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