Honda Fit: Fuel and Emissions System Description - Catalytic Converter System

Catalytic Converter   System

Warm Up Three Way Catalytic Converter   (WU-TWC) and Under-floor Three Way Catalytic Converter (Under-floor TWC)

The WU-TWC and the under-floor 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.

WU-TWC (ATTACHED TO THE CYLINDER HEAD)

UNDER-FLOOR TWC

See also:

Emissions Testing
Testing of Readiness Codes If you take your vehicle for an emissions test shortly after the battery has been disconnected or gone dead, it may not pass the test. This is because of certain ‘‘r ...

EVAP Canister Replacement
Raise the vehicle on a lift. Except LX (A/T model): Remove the fuel tank cover (A) LX (A/T model): Remove the floor under cover assembly (A). Remo ...

Pressure Plate Inspection and Removal
Remove the transmission. Check the evenness of the height of the diaphragm spring fingers using the clutch alignment disc (A), clutch alignment shaft (B), remover handle (C ...