Monitored Emission Control Systems
WARNING: This page is about a different car, the 2003 Saturn Vue. However, it is still accessible from the selected car via links, so may be relevant.
The OBD-II System monitors all emission control systems that are on-board. Not all vehicles have a full complement of emission control systems. For example, a vehicle may not be equipped with AIR or EGR. The OBD-II regulations require monitoring of the following:
- Air conditioning system.
- Catalytic converter efficiency.
- Comprehensive component monitoring - emission related inputs and outputs.
- Evaporative Emissions (EVAP) System.
- Exhaust Gas Recirculation (EGR) System.
- Fuel delivery system.
- Heated catalyst monitoring.
- Misfire monitoring.
- Oxygen Sensor (O2S or HO2S) system.
- Oxygen Sensor Heater (HO2S Heater) system.
- Secondary Air Injection (AIR) System.