Catalytic Converter: Service and Repair

Front Exhaust Pipe with Catalytic Converter

Removing

- Remove the engine cover/upper air filter housing. Refer to => [ Engine Cover/Upper Air Filter Housing ] Engine Cover/Upper Air Filter Housing.

- Disconnect the Heated Oxygen Sensor (HO2S) (G39) harness connector - arrow - and free up the wire.





- Remove the front exhaust pipe to turbocharger nuts - arrows -.





- Remove the right underbody trim bolts - arrows - and trim.





- Disconnect the connector for the Oxygen Sensor (O2S) behind Three Way Catalytic Converter (TWC) (G130) - arrow - and free up the wire.





• The flex joint in the front exhaust pipe must not be bent more than 10 °, otherwise it may be damaged.

- Disconnect the exhaust system at the clamping sleeve - arrows -.





- Remove the front crossmember nuts - arrows - and crossmember.





- Remove the suspended mount bolts - arrows - from the subframe.





- Remove the front exhaust pipe with catalytic converter.

Installing

Installation is performed in the reverse order of removal, noting the following:

• Lubricate the turbocharger stud bolts with hot bolt paste.

• Replace gaskets and self locking nuts.

• Install the exhaust system free of stress. Refer to => [ Exhaust System, Installing ] Exhaust System, Installing.

Tightening Specifications