Kia Optima: Exhaust Emission Control System / Catalytic Converter

Kia Optima DL3 2019-2025 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.

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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 ...

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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 ...

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