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Diagnostic Code P0136

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Old 03-31-2009, 10:13 AM   #1
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Question Diagnostic Code P0136

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!
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Old 03-31-2009, 10:39 AM   #2
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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.
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Old 03-31-2009, 11:10 AM   #3
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Check for an exhaust leak close to the sensor. Check the connector for corrosion.

http://www.obd-codes.com/p0136
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