Kia Optima: Exhaust Emission Control System / Catalytic Converter

Kia Optima DL3 2019-2023 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 2019-2023 Service and Repair Manual: Air Conditioning System

General safety information and caution Instructions (R-134a) When Handling Refrigerant 1. R-134a liquid refrigerant is highly volatile. A drop on the skin of your hand could result in localized frostbite. When handling the refrigerant, be sure to wear gloves. ...

Kia Optima DL3 2019-2023 Owner's Manual: Vehicle identification number (VIN)

■ Frame number The vehicle identification number (VIN) is the number used in registering your vehicle and in all legal matters pertaining to its ownership, etc. The number is punched on the front side wall of the engine room. ■ VIN label The VIN is also on a plate attached to the top o ...