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:

Ignition Switch Replacement
NOTE: SRS components are located in the area. Review the SRS component locations, and precautions and procedures   before doing repairs or servicing. Do the battery terminal di ...

Ignition Coil and Spark Plug Removal/Installation
Remove the under-cowl panel. Disconnect the ignition coil connectors (A), then remove the ignition coils (B). Remove the spark plugs, and inspect them. ...

Torque Converter Housing Lubrication Check Valve Replacement (A/T)
Remove the sealing bolt (A) and the sealing washer (B). Remove the lubrication check valve (C) from the torque converter housing (D). Install the lubrication check val ...