P0137 Diagnostic Trouble Code Discussion for November 2009
Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage
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| Help Request | Posted | |
| 1999 GMC Sierra 1500 SLE 4.3L Poor Idle Quality, Surge, Misfire, MIL Lamp on VIN: 1GTEC14W9X P0137: Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage. interpeted fuel trims as -13 stayin open loop longer than usual o2s never been changed ,maf normal shows good on brick,o2s switching , looks normal but see codes above don``t want to r and r o2s want to be sure any help would be apprecm thanks paul |
November 14, 2009 |
