P0137 Diagnostic Trouble Code Discussion for July 2023
Heated Oxygen Sensor (Bank 1 Sensor 2) Circuit Low Voltage
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| Help Request | Posted | |
| 2011 GMC Sierra 3500 HD SLE 6.0L Poor Idle Quality, Cuts out, Stall, Misfire, MIL Lamp on VIN: 1GT522CG8B P0137: Ho2s circuit low voltage b1s2. Vehicle runs rough and dies after 15 seconds while cold. Can warm it up and will run ok. ECT sensor appears to be reading correct. Replaced intake gaskets after found vacuum leak. Seemed like it got better but didnt. Have voltage drop tested coils, injecto... |
July 28, 2023 |
