Kia Picanto: Exhaust Emission Control System / Catalytic Converter

Kia Picanto JA 2017-2024 Service & 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

[WCC]

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

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

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 electric waste gate actuator (EWGA) extension connector (A).

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

7.	Disconnect the water hose (A).

8.	Disconnect the turbo charger water drain pipe hose (A).

Remove the coupler heat protector (A) and water drain pipe (B)

Tightening torque

Heat protector mounting bolt :

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

(If equipped with a cap, tighten it until the cap is removed.)

Eye bolt :

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

Bolt :

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

10.

Remove the exhaust manifold stay (A).

Tightening torque :

39.2 - 44.1 N·m (4.0 - 4.5 kgf·m, 28.9 - 32.5 lb·ft)

11.

Remove the warm-up catalytic converter (WCC) upper stay (A) and then remove the warm-up catalytic converter (WCC) (B).

Tightening torque

Warm-up catalytic converter (WCC) :

49.0 - 53.9 N·m (5.0 - 5.5 kgf·m, 36.1 - 39.7 lb·ft)

Warm-up catalytic converter (WCC) upper stay :

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

Installation

1.	Install in the reverse order of removal.

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