P0030 Diagnostic Trouble Code Discussion for December 2014
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction
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| Help Request | Posted | |
| 2001 Pontiac Grand Am SE 3.4L MIL Lamp on VIN: 1G2NF12E81 P0030: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction. ... one. Sets code P0030 (oxygen sensor heater circuit fault) right after start-up every time, replaced upstream sensor with new Denso part, still sets code, tried Delco sensor, same result. Test says to monitor O2 heater current after 1 minute of operation, s... |
December 15, 2014 |
