Kia Stinger: Exhaust Emission Control System / Catalytic Converter

Kia Stinger CK 2018-2025 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).

Catalytic Converter (WCC)

Repair procedures

Removal

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

2.	Disconnect the negative battery terminal.

3.	Remove the engine room front under cover. (Refer to Engine Mechanical System - "Engine Room Under Cover")

4.	Drain the coolant. (Refer to Engine Mechanical System - "Coolant")

5.	Remove the air intake hose. (Refer to Engine Mechanical System - "Air Cleaner")

6.	Disconnect the recirculation valve connector (A) and the vacuum hose (B).

Remove the intercooler inlet hose & pipe assembly (A).

Tightening torque

Nuts (B) :

14,7 - 19.6 N·m (1.5 - 2.0 kgf·m, 10.8 - 14.5 lb·ft)

Nut (C) :

14.7 - 19.6 N·m (1.5 - 2.0 kgf·m, 10.8 - 14.5 lb·ft)

1)	When disconnect the intercooler inlet hose, pull out the quick connector clamp (A) in the direction of the arrow as shown below.

2)	Move the quick connector clamp from position (B) to position (C) as shown below and pull out the quick connector hose.

Remove the turbocharger inlet hose (A).

Tightening torque :

4.9 - 6.9 N·m (0.5 - 0.7 kgf·m, 3.6 - 5.1 lb·ft. 43.4 - 60.8 lb·in)

Remove the heat protector (A).

Tightening torque :

7.8 - 11.8 N·m (0.8 - 1.2 kgf·m, 5.8 - 8.7 lb·ft)

10.	Remove the heated oxygen sensor. (Refer to Engine Control / Fuel System - " Heated Oxygen Sensor ( HO2S)")

11.

Remove the warm-up catalytic converter (WCC) heat protector (A).

Tightening torque :

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

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

13.

Remove the warm-up catalytic converter (WCC) stay (A).

Tightening torque

Bolts (B) :

18.6 - 27.5 N·m (1.9 - 2.8 kgf·m, 13.7 - 20.3 lb·ft)

Bolts (C) :

52.0 - 57.9 N·m (5.3 - 5.9 kgf·m, 38.3 - 42.7 lb·ft)

14.	Remove the RH hood sealing cover (A).

15.	Disconnect the heater hose (A).

16.

Remove the warm-up catalytic converter (WCC) (A) and gasket.

Tightening torque :

49.0 - 53.9 N·m (5.0 - 5.5 kgf·m, 36.2 - 39.7 lb·ft)

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 Stinger CK 2018-2025 Service Manual: Fuel Filler Cap

Description and operation Description A ratchet tightening device on the threaded fuel filler cap reduces the chances of incorrect installation, which seals the fuel filler. After the gaskets on the fuel filler cap and the filler neck flange contact each other, the ratchet produces ...

Kia Stinger CK 2018-2025 Service Manual: Rear Shock Absorber

Components and components location Components 1. Lock nut 2. Rear insulator 3. Bumper stopper 4. Dust cover 5. Shock absorber Repair procedures Removal 1. Remove wheel nuts, rear wheel and tire (A) from hub. ...