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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: Staff Member

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    5100's all on fours
  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!
     
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