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CA smog/exhaust with o2 simulator question

Discussion in 'Southern California' started by chris66, Dec 19, 2012.

  1. Dec 19, 2012 at 12:23 PM
    #1
    chris66

    chris66 [OP] ( ͡°( ͡° ͜ʖ( ͡° ͜ʖ ͡°)ʖ ͡°) ͡°)

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    dust
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    ive seen those roadside testing sites for smog out here in socal. well today i got stopped and all they did was plug into my computer inside the cab by your feet.

    first off i am under the assumption that 1st gen tacomas have two cats. 1 front and 1 rear. now do you need an o2 simulator if you remove the rear cat? i plan on removing the rear in the future and adding a magnaflow 14 inch muffler.

    now if you need an o2 simulator will you still pass smog if all they do is plug into your cars computer?
     
  2. Dec 20, 2012 at 5:03 PM
    #2
    chris66

    chris66 [OP] ( ͡°( ͡° ͜ʖ( ͡° ͜ʖ ͡°)ʖ ͡°) ͡°)

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    can anybody chime in on this
     
  3. Dec 26, 2012 at 10:27 AM
    #3
    MadTaco461

    MadTaco461 Well-Known Member

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    You need a simulator if you don't have a cat between 2 o2 sensors.
     
  4. Dec 26, 2012 at 10:30 AM
    #4
    98tacoma27

    98tacoma27 :POOPCORN: Staff Member

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    To specify, yes the CA emissions 3.4 has two CATs; front and rear. However the rear one is not monitored by the ECU. No simulator would be needed if it is removed but I cannot guarantee you would pass smog inspection on a visual test.
     
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