Catalytic Converter

Description and Operation

Description

The gasoline engine catalytic converter is a three-way catalyst. It oxidizes carbon monoxide (CO) and hydrocarbons (HC), and separates oxygen from nitrogen oxides (NOx).

[Catalytic Converter]

[UCC]

Repair Procedures

Removal and Installation

[Catalytic Converter]

1. 1

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

2. 2

   Remove the engine cover.

   (Refer to Engine Mechanical System - Engine Cover)

3. 3

   Remove the air cleaner assembly.

   (Refer to Engine Mechanical System - "Air Cleaner")

4. 4

   Remove the front muffler.

   (Refer to Engine Mechanical System - Muffler)

5. 5

   Disconnect the front oxygen sensor connector (A).

   

6. 6

   Disconnect the extension connector of the electric wastegate actuator (EWGA) (A).

7. 7

   Remove the intake pipe support (B).

   Tightening Torque

   M8 bolts:

   18,6–24 N·m

   M10 bolt:

   29,4–34 N·m

8. 8

   Remove the intake pipe (C) and gasket.

   Tightening Torque

   Bolts:

   29,4–39 N·m

   Nut:

   35,3–41 N·m

   

9. 9

   Remove the water pipe and turbocharger hose (A).

   Tightening Torque

   Flange bolt:

   9,8–11.8 N·m

   Banjo bolt:

   26,4–32 N·m

10. 10

    Remove the heat shield (B) of the turbocharger manifold module.

    Tightening Torque: 9.8–11.8 N·m

    

11. 11

    Remove the catalytic converter (A).

    Tightening torque: 35.3–41 N·m

    

[UCC]

1. Remove the catalytic converter and center muffler.

   (Refer to Engine Mechanical System - Muffler)

Installation

1. Install in the reverse order of removal.