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:

Piston Installation
If the Crankshaft is Already Installed Set the crankshaft to bottom dead center (BDC) for each cylinder as its piston is installed. Remove the connecting rod caps, and check that ...

A/T Secondary Shaft Sealing Ring Replacement (A/T)
The sealing rings are synthetic resin with chamfered ends. Check the condition of the sealing rings, and replace them only if they are worn, distorted, or damaged. For a better fit, squeeze ...

If the Engine Won’t Start
Diagnosing why the engine won’t start falls into two areas, depending on what you hear when you turn the ignition switch to the START (III) position: • You hear nothing, or almost nothing. The ...