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Main Catalytic Convertor and Connecting Pipe

MAIN CATALYTIC CONVERTER AND CONNECTING PIPE

Removal Procedure





1. Remove the post-converter heated oxygen sensor.





2. Remove the connecting pipe nuts and the gasket from the auxiliary catalytic converter.





3. Disconnect the connecting pipe from the rubber hanger.
4. Remove the nuts from the front muffler pipe to the main catalytic converter.





5. Remove the catalytic converter and the connecting pipe and the gasket.
6. Clean the sealing surfaces on the front muffler pipe flange and the auxiliary catalytic converter.
7. Check the catalytic converter and the connecting pipe for holes, damage, open seams, or other deterioration, which could permit exhaust fumes to seep into the passenger compartment.

Installation Procedure





1. Install the main catalytic converter and the connecting pipe and the gasket to the front muffler pipe flange. Use the nuts to secure the converter and the connecting pipe.
Tighten the front muffler-to-main catalytic converter and connecting pipe nuts to 30 Nm (22 ft. lbs.).





2. Connect the connecting pipe to the rubber hanger.
3. Using the nuts and the gasket, secure the connecting pipe to the auxiliary catalytic converter.
Tighten the front connecting pipe-to-auxiliary catalytic converter nuts to 30 Nm (22 ft. lbs.).





4. Install the post-converter heated oxygen sensor.
Tighten the post-converter heated oxygen sensor to 41 Nm (30 ft. lbs.).