Installation

2GR-FE EMISSION CONTROL: AIR FUEL RATIO SENSOR (for 4WD): INSTALLATION

1. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 1)

(a) Using SST, install the sensor to the exhaust manifold LH.





SST : 09224-00010

Torque : 40 Nm (408 kgf-cm, 30 ft-lbf for use with SST)

Torque : 44 Nm (449 kgf-cm, 32 ft-lbf for use without SST)

HINT
* Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
* Make sure that SST and wrench are connected in a straight line.
(b) Connect the sensor connector.

2. INSTALL AIR FUEL RATIO SENSOR (for Bank 1 Sensor 1)

(a) Using SST, install the sensor to the exhaust manifold RH.





SST : 09224-00010

Torque : 40 Nm (408 kgf-cm, 30 ft-lbf for use with SST)

Torque : 44 Nm (449 kgf-cm, 32 ft-lbf for use without SST)

HINT
* Use a torque wrench with a fulcrum length of 30 cm (11.81 in.).
* Make sure that SST and wrench are connected in a straight line.
3. INSTALL EXHAUST MANIFOLD RH

(a) Install the exhaust manifold RH with a new gasket and 6 nuts.





Torque : 21 Nm (214 kgf-cm, 15 ft-lbf)

(b) Install the exhaust manifold stay with the nut and bolt.





Torque : 35 Nm (357 kgf-cm, 26 ft-lbf)

(c) Connect the air fuel ratio sensor (for Bank 1 Sensor 2) connector.

4. INSTALL CENTER EXHAUST PIPE ASSEMBLY

(a) Check compression springs.





(1) Check the compression springs using vernier calipers.

Specified length:

38.86 mm (1.5299 in.)

HINT
If the result is not as specified, replace the compression spring.

(b) Install the gasket.





(1) Install a new gasket by hand onto the front exhaust pipe assembly.

(2) Using a plastic hammer and wooden block, tap in the new gasket until its surface is flush with the front exhaust pipe.

NOTICE:
* Be careful with the installation direction of the gasket.
* Do not damage the gasket.
* Do not reuse the gasket.
* To ensure a proper seal, do not use the exhaust pipe to force the gasket on to the front exhaust pipe.
(c) Install 2 new gaskets to the front exhaust pipe assembly.

(d) Install the front exhaust pipe assembly with the 2 nuts and 2 bolts.

Bolt - Torque : 43 Nm (440 kgf-cm, 32 ft-lbf)

Nut - Torque : 62 Nm (632 kgf-cm, 46 ft-lbf)





(e) Install the center exhaust pipe assembly with the 2 compression springs and 2 bolts.





Torque : 43 Nm (438 kgf-cm, 32 ft-lbf)

(f) Attach the clip.





(g) Connect the heated oxygen sensor (for Bank 1 Sensor 2) connector.

5. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

6. INSPECT FOR EXHAUST GAS LEAK