Kia Optima: Exhaust Emission Control System / Catalytic Converter

Kia Optima DL3 2019-2022 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 2019-2022 Service and Repair Manual: Crankshaft Position Sensor (CKPS)

Description and operation Description • Crankshaft Position Sensor (CKPS) detects the crankshaft position and is one of the most important sensors of the engine control system. • If there is no CKPS signal input, fuel is not supplied. Th ...

Kia Optima DL3 2019-2022 Owner's Manual: Instrument panel overview

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