Kia Optima: Exhaust Emission Control System / Catalytic Converter

Kia Optima DL3 2019-2024 Service and Repair Manual / Emission Control System / Exhaust Emission Control System / Catalytic Converter

Description and operation

Description

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

Removal

[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")

Installation

1.	Install in the reverse order of removal.

Exhaust Emission Control System

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 ...

CVVT (Continuous Variable Valve Timing) System

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:

Kia Optima DL3 2019-2024 Owner's Manual: Driver's Attention

The driver must be cautious in the below situations, because the system may not detect other vehicles or objects in certain circumstances. - When a trailer or carrier is installed. - The vehicle drives in inclement weather such as heavy rain or snow. - The sensor is polluted with rain, snow, mu ...

Kia Optima DL3 2019-2024 Owner's Manual: Driver's and passenger's front air bag

■ Driver’s front air bag ■ Driver’s knee air bag ■ Passenger’s front air bag Your vehicle is equipped with an Advanced Supplemental Restraint (Air Bag) System and lap/shoulder belts at both the driver and passenger seating position. The indication of the system's presence are ...