Catalytic Converter: Description and Operation

Catalytic Converter System

Warm-up Three Way Catalytic Converter (WU-TWC)/Three Way Catalytic Converter (TWC)







The WU-TWC and TWC convert hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx) in the exhaust gas to carbon dioxide (CO2), nitrogen (N2), and water vapor (H2O).