Rear TWC Replacement

1. DISCONNECT HEATED OXYGEN SENSORS (BANK 1,2 SENSOR2) FROM FRONT EXHAUSTS PIPE
- Disconnect the 2 wire grommets from the floor.
- Disconnect the 2 oxygen sensors from the exhaust pipe.





2. REMOVE FRONT EXHAUST PIPE (REAR TWC)
- Remove the 4 bolts holding the pipe support bracket to the transmission.
- Remove the 2 bolts and nuts holding the front exhaust pipe to the center exhaust pipe.
- Remove the 4 bolts and nuts holding the front exhaust pipe to the front TWC.
- Remove the pipe support bracket, front exhaust pipe and 3 gaskets.

3. REINSTALL FRONT EXHAUST PIPE (REAR TWC)
- Temporarily install the pipe support bracket with the 4 bolts.
- Temporarily install 3 new gaskets and the exhaust pipe with the 6 bolts and nuts.
- Tighten the 4 bolts and nuts holding the front TWC to the front exhaust pipe.

Torque: 43 N.m (440 kgf.cm, 32 ft.lb.)

- Tighten the 2 bolts and nuts holding the front exhaust pipe to the center exhaust pipe.

Torque: 43 N.m (440 kgf.cm. 32 ft.lb.)

- Tighten the 4 bolts holding the pipe support bracket to the transmission.

Torque: 43 N.m (440 kgf.cm, 32 ft.lb.)

4. INSTALL HEATED OXYGEN SENSORS (BANK 1, 2 SENSOR 2)
- Install the 2 oxygen sensors to the front exhaust pipe.

Torque: 44 N.m (450 kgf.cm, 33 ft.lb.)

HINT:
- Before installing the oxygen sensor, twist the sensor wire counterclockwise 3 and 1/2 turns.
- After installing the oxygen sensor, check that the sensor wire is not twisted.
- If it is twisted, remove the oxygen sensor and reinstall it.

- Install the 2 wire grommets to the floor panel.