Kia Forte: Exhaust Emission Control System / Catalytic Converter

Kia Forte 2019-2021 (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).

7.

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)

8.

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)

9.

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.

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