P0135 Diagnostic Trouble Code Discussion for May 2017
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Performance
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| Help Request | Posted | |
| 1999 Chevrolet Blazer 4.3L Excessive Emissions, Poor Idle Quality, Hesitation, Misfire, Poor Fuel Economy, MIL Lamp on VIN: 1GNDT13W8X P0135: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction. ... MIL on + random/multiple misfire code p0300 noticed quickly that rough running, tech2 shows #1 missing as eng trying to warmup ,then #3 also misfire counts, then,not run too bad, maybe miss some at med load. Noticed Bank1 staying @ 650-750mv,no ossillation... |
May 06, 2017 |
