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Diagnostic Code P0136

Discussion in 'Technical Chat' started by bhenderson, Mar 31, 2009.

  1. Mar 31, 2009 at 9:13 AM
    #1
    bhenderson

    bhenderson [OP] New Member

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    Hello! My dealership has had difficulty finding out why my Tacoma has the check engine light on. Having checked the system with my code reader, it came up with P0136. This means there is a "sensor circuit malfunction." Specifically, it is an air/ fuel corruption. Any ideas as to why the dealership cannot/ does not want to help me? How can I fix this problem and turn off my check engine light for good? Thanks!
     
  2. Mar 31, 2009 at 9:39 AM
    #2
    rutherk1

    rutherk1 ElPhantasmo&TheChickenRunBlastarama

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    Oxygen O2 Sensor Circuit Low Voltage-bank 1 sensor 2. Could have been a misfire or bad gas. Id reset and not worry about it. If it comes back on try replacing that sensor.

    What year? If its new, I would reset it and write it off as a fluke.
     
  3. Mar 31, 2009 at 10:10 AM
    #3
    98tacoma27

    98tacoma27 :POOPCORN: Moderator

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  4. Apr 17, 2015 at 10:10 PM
    #4
    taco4tim

    taco4tim New Member

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    I replaced both O2 sensors and completed a drive cycle and code still pops up. The sensors were caked with black smoke residue. What else could it be? Please Help!
     
  5. Jun 28, 2016 at 3:43 PM
    #5
    jahsonferg

    jahsonferg New Member

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    Cut your cat off replace w straight pipe leaving o2 sensors in place.
     
  6. Jun 28, 2016 at 4:46 PM
    #6
    tpotnoc

    tpotnoc Active Member

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    Is that the only current code? Read the Long term fuel trim if possible, this will give you an idea of what's going on.
     
  7. Jul 15, 2016 at 11:54 PM
    #7
    wilcam47

    wilcam47 Well-Known Member

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    check for proper connection and or corrosion at the connection.
     
  8. Jul 22, 2016 at 3:55 AM
    #8
    tacoma08brandon87

    tacoma08brandon87 Well-Known Member

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    My truck has engine light on and the battery light as well any ideas taking it to toyota to do a diagnostic test. Help
     
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