Auxiliary Catalytic Convertor

Removal Procedure





1. Disconnect the pre-converter oxygen sensor electrical connector.





2. Remove the exhaust manifold cover bolts and the exhaust manifold cover.





3. Remove the auxiliary catalytic converter upper flange nuts.





4. Remove the auxiliary catalytic converter lower flange nuts.
5. Remove the auxiliary catalytic converter and the gaskets.

Installation Procedure
1. Install the auxiliary catalytic converter and the gaskets.

Important: Position the auxiliary catalytic converter onto the exhaust manifold flange with one upper flange nut and bolt.





2. Install the auxiliary catalytic converter lower flange nuts and the bolts.
Tighten the front connecting pipe-to-auxiliary catalytic converter nuts to 35 Nm (26 ft. lbs.).





3. Install the remaining auxiliary catalytic converter upper flange nuts.
Tighten the auxiliary catalytic converter-to-exhaust manifold nuts to 35 Nm (26 ft. lbs.).





4. Install the exhaust manifold cover and the exhaust manifold cover bolts.
Tighten the exhaust manifold cover bolts to 15 Nm (11 ft. lbs.).





5. Connect the pre-converter oxygen sensor electrical connector.