Catalytic Converter: Service and Repair

Warm Up TWC Removal/Installation

FRONT

1. Remove the engine cover.

2. Remove the condenser fan shroud Radiator and A/C Condenser Fan, Motor, and Shroud Removal and Installation.

3. Remove the No. 2 ignition coil and the ignition coil heat insulator.

4. Remove the front A/F sensor (Sensor 1) A/F Sensor Replacement and the front secondary HO2S (Sensor 2) Secondary HO2S Replacement.

5. Remove the exhaust pipe A mounting nuts (front WU-TWC side) Service and Repair.

6. Remove the EGR pipe Service and Repair.

7. Remove the front WU-TWC bracket, then carefully remove the front WU-TWC.





8. Carefully install the front WU-TWC with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps.

9. Install the parts in the reverse order of removal.

REAR

1. Raise the vehicle on a lift.

2. Remove the intermediate shaft Intermediate Shaft Removal.

3. Remove the rear A/F sensor (Sensor 1) A/F Sensor Replacement and the rear secondary HO2S (Sensor 2) Secondary HO2S Replacement.

4. Remove the exhaust pipe A mounting nuts (rear WU-TWC side) Service and Repair.

5. Carefully remove the rear WU-TWC.





6. Carefully install the rear WU-TWC with a new gasket and new self-locking nuts. Tighten the nuts in a crisscross pattern in two or three steps.

7. Install the parts in the reverse order of removal.