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:

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 ...

Throttle Body Disassembly/Reassembly
...

Removal
Drain the engine coolant. Remove the air cleaner. Remove the heater hose clamp bracket mounting bolt (A) and the harness holder mounting bolt (B). ...