P0101, P0131, P0151 Trouble Codes - 2002 Chevrolet Trans Am 5.7L V8 6-Speed with Airflow Sensor Issues
I'm experiencing the following OBD-II trouble codes on my 2002 Chevrolet Trans Am 5.7L V8 6-speed model: - P0101: Mass Airflow (MAF) Sensor Range/Performance Issue - P0131: Oxygen Sensor Circuit Low Voltage (Bank 1) - P0151: Oxygen Sensor Circuit Low Voltage (Bank 2) What parts should be replaced or repaired? Any advice would be greatly appreciated. 1) Mass Airflow (MAF) Sensor - Range/Performance Issue 2) Oxygen Sensor Circuit Low Voltage (Bank 1) - Front O2 Sensor 3) Oxygen Sensor Circuit Low Voltage (Bank 2) - Rear O2 Sensor Thank you for any guidance or troubleshooting tips. *Lon*
The oxygen sensors have likely been contaminated. Remove and inspect the sensor to determine the type of contamination. Common causes include: - Use of incorrect silicone RTV sealant - Engine coolant leaking into the combustion chamber - Excessive engine oil consumption - Fuel containing silicon contaminants - Use of leaded fuel Once the root cause of contamination is addressed, the oxygen sensors must be replaced. It's recommended to fix the O2 sensor issues first. Additionally, try cleaning the MAF sensor as a potential step in resolving the P0101 code.