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Oxygen sensors

Discussion in '2nd Gen Tundras (2007-2013)' started by Evanhawtrey, Dec 6, 2022.

  1. Dec 6, 2022 at 10:15 AM
    #1
    Evanhawtrey

    Evanhawtrey [OP] New Member

    Joined:
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    First Name:
    Evan
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    2012 tundra rock warrior
    I added bilstein struts up front instead of a leveling kit to raise it
    2012 tundra dbl cab 6.5’bed rock warrior .. stock exhaust .. are there 2 or 4 o2 sensors? Do you have to drop exhaust to change them ? Any tips? I’m throwing a code for 2 o2 sensors and I have 150k miles so I wanna just replace them all..Tia!
     
  2. Dec 6, 2022 at 11:57 AM
    #2
    baraynavab

    baraynavab Toyo Junkie

    Joined:
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    2007 Tundra CrewMax 4x4 5.7L V8
    IIRC there are 4 sensors, 2 in the front of the Cat and 2 in the back. As far as replacement. I do not recall where they are located. But I am sure others on here can chime in on that. BTW what Code are you getting? cause its not always a O2 sensor that needed changing when you get those codes.

    Also recommend using Original Denso O2 sensors (not fake ones from ebay and maybe Amazon) to fix them...
     
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    #2
  3. Dec 6, 2022 at 1:09 PM
    #3
    Evanhawtrey

    Evanhawtrey [OP] New Member

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    First Name:
    Evan
    Vehicle:
    2012 tundra rock warrior
    I added bilstein struts up front instead of a leveling kit to raise it
    Po 172 po175 and it kinda rough starts.. it starts but it lags a bit compared to usual .. new map sensor .. new battery.. check engine light is on trac off is illuminated and 4 lo is flashing
     
  4. Dec 6, 2022 at 4:45 PM
    #4
    baraynavab

    baraynavab Toyo Junkie

    Joined:
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    2007 Tundra CrewMax 4x4 5.7L V8
    Did you look up the Long and Short Term fuel trims via obd2 or Techstream? Looking at those figures and then pushing a lean condition or rich condition on the engine may give you which O2 sensor is gone bad instead of you thinking of switching out all of them.
     
    Last edited: Dec 6, 2022

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