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P0137 Diagnostic Trouble Code Discussion for January 2012

Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage

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Trouble Ticket Help Requests for DTC P0137
Help Request Posted
2001 Nissan micra 1400CC Excessive Emissions, MIL Lamp on
P0137: rear HO2S - low voltage not switching - starts at .45v drop to minus .10v - after cat - front one switch ok. ... DTC found were P0137 & P0131. Once erased the DTCs would re-log within 5 miles triggering the mil lamp. Replace both Oxygen sensors - DTC re-logged was P0131 [rear sensor] - flat lining - reading started at .45v and gradually dropped to -0.10V. - DTC P...
January 23, 2012