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:

ODS Unit Replacement
Removal Do the battery terminal disconnection procedure, then wait at least 3 minutes before starting work. Disconnect the passenger's side airbag harness 2P connector. ...

Front Door Sash Outer Trim Replacement
NOTE: Take care not to scratch the door or related parts. Remove the door sash outer trim (A). Remove the screw from inside the door. Release the lower edge of the tr ...

Inspection
Raise and support the vehicle. Remove the front wheels. Check the thickness (A) of the inner pad (B) and the outer pad (C). Do not include the thickness of the back ...