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:

Accessory Power Socket Test/Replacement
NOTE: If the accessory power socket does not work, check the No. 13 (20 A) fuse in the under-dash fuse/relay box and ground (G502) first. Remove the dashboard center lower trim. ...

Breather Line and Suction Line Inspection (Page-1)
Special Tools Required Fuel Pressure Gauge Attachment Set 07AAJ-S6MA150 Vacuum Pump/Gauge, 0-30 inHg Snap-on YA4000A or equivalent, commercially available Vacuum/Pressure Gauge, 0-4 inHg 07 ...

Reporting Safety Defects
In the U.S. If you believe that your vehicle has a defect which could cause a crash or could cause injury or death, you should immediately inform the National Highway Traffic Safety Administration ...