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: Torque Converter Control Solenoid Valve (T/CON_VFS)

Specifications Specification Control type N/L (Normal Low) Control pressure kpa (kgf/cm², psi) 0 - 519.75 (0 - 5.3, 0 - 75.38) Current (mA) 0 - 850 Coil resistance (Ω) ...

Kia Optima DL3 2019-2021 Owner's Manual: Air bag - advanced supplemental restraint system

The actual air bags in the vehicle may differ from the illustration. (1) Driver’s front air bag (2) Passenger’s front air bag (3) Side air bag (4) Curtain air bag (5) Driver’s knee air bag Even in vehicles with air bags, you and your passengers must always wear the safety belts provi ...