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P0137 Diagnostic Trouble Code Discussion for October 2004

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

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Trouble Ticket Help Requests for DTC P0137
Help Request Posted
1996 Saab 900 SE 2.5L MIL Lamp on VIN: YS3DF78V9T
P0137: O2 circuit low voltage B2S1. Need help with this car. Keeps setting O2 sensor codes. If the codes are cleared they will return after driving the car. Don't have a SAAB scan tool so can only look at OBD II data. The data shows 0 volts for all the O2 sensors and does not change. LOOP status...
October 04, 2004
1996 Chevrolet C3500 5.7L Poor Idle Quality, Misfire, MIL Lamp on VIN: 4A3AX35G2W
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. This vehicle has an irregular missfire when hot. It is a 1 ton with a milk cooler box on the back, used for making deliveries. The driver said it would run fine for 25 or 30 miles, then begin to miss and hesitate. If shut off for a half hour or so, the miss wi...
October 12, 2004