P0030 Diagnostic Trouble Code Discussion for March 2007
Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Control Circuit Malfunction
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| Help Request | Posted | |
| 2001 Pontiac Grand Am GT 3.4L MIL Lamp on VIN: 1G2NW52E11 P0030: Heated Oxygen Sensor (Bank 1 Sensor 1) Heater Circuit Malfunction. This car came in with MIL on for O2 heater circuit. Have replaced O2 sensor twice. Checked for power and ground both are OK. Alldata test indicates to replace PCM. Do not want to replace without being positive. Any insight will be greatly appreciated. |
March 29, 2007 |
