Kia Forte: Exhaust Emission Control System / Catalytic Converter

Kia Forte 2019-2025 (BD) Service 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).

[WCC]

[UCC]

Repair procedures

Removal and Installation

[WCC]

1.	Turn ignition switch OFF and disconnect the battery negative (-) terminal.

2.	Remove the engine cover. (Refer to Engine Mechanical System - "Engine Cover")

3.	Remove the air cleaner assembly. (Refer to Engine Mechanical System - "Air Cleaner")

4.	Remove the front muffler. (Refer to Engine Mechanical System - "Muffler")

5.	Disconnect the front oxygen sensor connector (A).

6.	Disconnect the electric waste gate actuator (EWGA) extension connector (A).

Remove the intake pipe stay (B).

Tightening torque

M8 Bolts :

18.6 - 23.5 N·m (1.9 - 2.4kgf·m, 13.7 - 17.4 lb·ft)

M10 Bolt :

29.4 - 34.3 N·m (3.0 - 3.5kgf·m, 21.6 - 25.3 lb·ft)

Remove the intake pipe(C) and gasket.

Tightening torque

Bolts :

29.4 - 39.2 N·m (3.0 - 4.0 kgf·m, 21.6 - 28.9 lb·ft)

Nut :

35.3 - 41.1 N·m (3.6 - 4.2 kgf·m, 26.0 - 30.3 lb·ft)

Remove the turbo charger water pipe & hose (A).

Tightening torque

Flange Bolt :

9.8 - 11.8N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

Eye Bolt :

26.4 - 32.3 N·m (2.7 - 3.3 kgf·m, 19.5 - 32.3 lb·ft)

10.

Remove the turbo manifold module heat protector (B).

Tightening torque :

9.8 - 11.8 N·m (1.0 - 1.2 kgf·m, 7.2 - 8.7 lb·ft)

11.

Remove the catalytic converter (A).

Tightening torque :

35.3 - 41.1 N·m (3.6 - 4.2 kgf·m, 20.0 - 30.3 lb·ft)

[UCC]

1.	Remove the catalytic converter & center muffler. (Refer to Engine Mechanical System - "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 (Continuously 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 Forte 2019-2025 (BD) Owners Manual: To convert to cruise control mode

The driver may choose to only use the cruise control mode (speed control function) by doing as follows: 1. Turn the smart cruise control system on (the cruise indicator light will be on but the system will not be activated). 2. Push the distance to distance switch for more than 2 s ...

Kia Forte 2019-2025 (BD) Service Manual: Rear Mud Guard

Repair procedures Replacement Put on gloves to prevent hand injuries. • When removing with a flat - tip screwd ...