Kia Optima: Exhaust Emission Control System / Catalytic Converter

Kia Optima DL3 2019-2021 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 2019-2021 Service and Repair Manual: Passenger Airbag (PAB) Module

Description and operation Description The passenger airbag (PAB) is installed inside the crash pad and protects the front passenger in the event of a frontal crash. The SRSCM determines if and when to deploy the PAB. ...

Kia Optima DL3 2019-2021 Owner's Manual: Front seat adjustment - manual

Forward and backward To move the seat forward or backward: 1. Pull the seat slide adjustment lever up and hold it. 2. Slide the seat to the position you desire. 3. Release the lever and make sure the seat is locked in place. Adjust the seat before driving, and make sure the seat is locked sec ...