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Which sensor to replace?

Discussion in '1st Gen. Tacomas (1995-2004)' started by topjimmy, Jan 30, 2010.

  1. Jan 30, 2010 at 4:45 PM
    #1
    topjimmy

    topjimmy [OP] Member

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    Jim
    maple valley, wa
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    04 PreRunner SR5 TRD
    Linex Bed Liner
    :mad:Now I need some help. Heres the code, P0031 HO2S Heater Control Circuit Low (Bank 1 Sensor 1). Now what I need to know is this. Is there more than one H02Sensor infront of the cats, because of the V6 having a left and rightexhaust pre catalytic? I ask because I have not been under the vehicle to look at the scenario yet. I have looked through some of the threads and the replacement seems straight forward. Somewhere someone mentioned a spray to place on the nuts as I think this is not a threaded sensor but a double studed one. Does Bank 1 refere to a side of the vehicles exhaust?

    A little history. I went to schucks/ now OReilly, and checked the code for free. I didnt want to give toyota a ton of bucks for the pleasure of testing. I just need to know which sensor to buy and I'll do the work. Pisses me off cuz I just got done paying them for the 92,000 timing belt swap, 850.00 plus a bunch of other stuff. :mad:
     
  2. Jan 30, 2010 at 4:48 PM
    #2
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    Its the Air/Fuel Sensor. Its the closest sensor to the engine along the exhaust system.
    This should help ya.
     
  3. Jan 30, 2010 at 5:26 PM
    #3
    topjimmy

    topjimmy [OP] Member

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    Linex Bed Liner
    Thanks thats great to know. I'll go get a Bosch and get r done:headbang:
    Unless anyone suggest going to the dealer on this. Rockauto?
     
  4. Jan 30, 2010 at 5:27 PM
    #4
    humanoid

    humanoid bite me

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    Don't get a Bosch, get what originally came on your truck, Denso. It costs a bit more for a reason.
     
  5. Jan 30, 2010 at 6:46 PM
    #5
    topjimmy

    topjimmy [OP] Member

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    Jim
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    04 PreRunner SR5 TRD
    Linex Bed Liner
    Rockauto has the Denso part # 2349001 pre cat part for auto trans models for 143.00 . Gasket 8 bucks. What was the name of that spray to put on the nutz. You guys rock, so glad I found this sight. :cheers::bananadance::bowdown::taco:
     
  6. Jan 30, 2010 at 6:49 PM
    #6
    chris4x4

    chris4x4 With sufficient thrust, pigs fly just fine. Moderator

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    FlimFlubberJAM
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    2013 Rubicon Unlimited,
    4.10 gears, sliders, and lots of buttons.
    PB Blaster.

    [​IMG]
     
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