A8: Emission Control Systems Diagnosis and Repair

Air Injection System  

Catalytic Converter (2004+)  

Catalytic Converter Operation  

Catalytic Converter Temperature Test  

Check Exhaust Gas Temp EGT  

Dual Cell O2 Sensor Voltage Check  

EGR System Tests  

Evaporative Emission Control System  

Evaporative Emission Control System Test  

Exhaust Gas Recirculation, EGR  

Exhaust Gas Temperature Sensors  

Positive Crankcase Ventilation (PCV)  

Positive Crankcase Ventilation System Tests  

Secondary Air Injection