Kia Optima: Exhaust Emission Control System / Catalytic Converter
Description and operation
The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes
carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides of nitrogen
(NOx).


Repair procedures
[Catalytic Converter (WCC)] |
1. |
Remove the exhaust manifold.
(Refer to Engine Mechanical System - "Exhaust Manifold")
|
[Catalytic Converter (UCC)] |
1. |
Remove the Center Muffler.
(Refer to Engine Mechanical System - "Center Muffler")
|
1. |
Install in the reverse order of removal.
|
Description and operation
Description
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications
and the addition of special control components.
Modifica ...
Description and operation
Description
Continuous Variable Valve Timing (CVVT) system advances or retards the valve
timing of the intake and exhaust valve in accordance with the ECM con ...
Other information:
All season tires
Kia specifies all season tires on some models to provide good performance for
use all year round, including snowy and icy road conditions. All season tires are
identified by ALL SEASON and/or M+S (Mud and Snow) on the tire sidewall. Snow tires
have better snow traction than a ...
Repair procedures
Replacement
Put on gloves to prevent hand injuries.
•
When removing with a flat-tip screwdri ...