Front Catalytic Converter

REMOVAL

1. Set the vehicle on the lift.
2. Remove battery.
3. Remove air cleaner case and air intake duct.




4. Disconnect front oxygen (A/F) sensor connectors.
5. Lift-up the vehicle.
6. Remove under cover.
7. Remove front oxygen A/F sensor harness from the clips attached to both right and left cylinder head covers.




8. Disconnect connector from rear oxygen sensor connector.
9. Separate front exhaust pipe from rear exhaust pipe.






CAUTION: Be careful, exhaust pipe is hot.




10. Remove bolts which hold front exhaust pipe onto cylinder heads.
11. Remove front exhaust pipe from hanger bracket.






CAUTION: Be careful not to pull down front exhaust pipe.

12. Separate front catalytic converter (RH) from front exhaust pipe.






NOTE: The rear catalytic converter is integrated with front catalytic converter. Therefore, the procedure for removing rear catalytic converter is the same as given in the description.

INSTALLATION

CAUTION: Replace gaskets with new ones.




1. Install front catalytic converter (RH) to front exhaust pipe.




2. Install front exhaust pipe. And temporarily tighten bolt which installs front exhaust pipe to hanger bracket.




3. Tighten bolts which hold front exhaust pipe onto cylinder heads.




4. Install front exhaust pipe to rear exhaust pipe.




5. Tighten bolt which holds front exhaust pipes to hanger bracket.




6. Connect connector to rear oxygen sensor connector.
7. Install front oxygen A/F sensor harness to the clips attached to the cylinder head covers.
8. Install under cover.
9. Lower the vehicle.




10. Connect front oxygen (A/F) sensor connector.
11. Install air cleaner case and air intake duct.
12. Install battery.

NOTE: The rear catalytic converter is integrated with front catalytic converter. Therefore, the procedure for installing rear catalytic converter is the same as given in the description.