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2001 Pontiac Grand Am SE 3.4L MIL Lamp on
Pretty sure we have a bad PCM on this 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 curr...
FIX posted 12/18/2014
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Message Closed w/FIX
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Related Documents & Media | VIN | 1G2NF12E81 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Relay Circuit Malfunction |
Message Closed w/FIX
Vehicle Data
2001 Pontiac Grand Am SE
| VIN | 1G2NF12E81 |
| Engine | 3.4 L / 6 cyl / GAS |
| Trans | 4-speed Automatic (Electronic) |
| Delivery | Fuel Injection |
| Emissions | OBD-II Compliant |
| Symptoms | MIL Lamp On |
| Occurs | Always |
Trouble Codes
| P0030 | Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Relay Circuit Malfunction |
Video