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P0137 Diagnostic Trouble Code Discussion for July 2009

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 Chevrolet C1500 Cheyenne 5.7L Misfire, MIL Lamp on VIN: 2GCEC19R4T
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. VEHICLE CAME IN CHECK ENGINE LIGHT ON. MISFIRES ON #3 AND #6 according to counter. [...] dist cap, coil firing, plug wires firing. compression good. vacuum test good. fuel pressure within spec. replaced #3 and #6 injectors and then all but #6 cylinder were mis...
July 13, 2009
1996 Chevrolet C1500 Cheyenne 5.7L Misfire, MIL Lamp on VIN: 2GCEC19R4T
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. VEHICLE CAME IN CHECK ENGINE LIGHT ON. MISFIRES ON #3 AND #6 according to counter. [...] dist cap, coil firing, plug wires firing. compression good. vacuum test good. fuel pressure within spec. replaced #3 and #6 injectors and then all but #6 cylinder were mis...
July 14, 2009
1998 Porsche Boxster 2.5L Poor Idle Quality, MIL Lamp on VIN: WPOCA298XW
P0137: Short Circuit to Ground at Signal Wire or Incorrect Voltage. I have a Boxter with 4 o2s codes PO131,PO137,PO151,PO157 all reading low voltage. I disconnected all o2s and ohmed them out. My result on those were all read OFL. According to alldata they test good. Then I tested then ecm and wiring harness. I checked voltage...
July 20, 2009
1998 Porsche Boxster 2.5L Poor Idle Quality, MIL Lamp on VIN: WPOCA298XW
P0137: Short Circuit to Ground at Signal Wire or Incorrect Voltage. I have a Boxter with 4 o2s codes PO131,PO137,PO151,PO157 all reading low voltage. I disconnected all o2s and ohmed them out. My result on those were all read OFL. According to alldata they test good. Then I tested then ecm and wiring harness. I checked voltage...
July 22, 2009
2000 Chevrolet Suburban 1500 LT 5.3L MIL Lamp on VIN: 3GNFK16T2Y
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. we have this truck with bank 2 sensor 2 o2s reading 60 to 80 millivolts have replaced convertor 2 times have replaced o2s 3 times with oe units resealed intake gasket ,valley pan replaced pvc valve still have code po137 no other symptoms bank 1 all normal
July 23, 2009
1996 Chevrolet K1500 5.7L Misfire VIN: 1GCEK14R8T
P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. Good afternoon, I have what may be a stupid question but how do you go about verifing a bad injector assy on this Vortec? I have never had to replace one so I want to be sure it is bad. The truck has high misfire counts on cyl 3 and 5. Has some on cyl 6 but ju...
July 27, 2009