Catalytic Converter: Service and Repair

Three-way Catalytic Converter (TWC) System:

REPLACEMENT




1. DISCONNECT HEATED OXYGEN SENSORS
Remove the 2 heated oxygen sensors from the front exhaust pipes.




2. REMOVE RH AND LH FRONT EXHAUST PIPES
a. Remove the 6 nuts from the front side of the RH and LH front exhaust pipes.




b. Remove the 4 bolts from the rear side of the RH and LH front exhaust pipes.
c. Remove the RH and LH front exhaust pipes and 4 gaskets.

3. INSTALL RH AND LH FRONT EXHAUST PIPES
a. Install 4 new gaskets to the RH and LH front exhaust pipes.
b. Install the 4 bolts.

Torque: 48 N.m (489 kgf.cm, 35 ft.lbf)

c. Install 6 new nuts to the front side of the RH and LH front exhaust pipes.

Torque: 62 N.m (632 kgf.cm, 46 ft.lbf)

4. INSTALL HEATED OXYGEN SENSOR
Install the 2 heated oxygen sensors to the RH and LH front exhaust pipes.

Torque: 44 N.m (450 kgf.cm, 32 ft,.lbf)