Toyota Tundra. Manual — part 1293

SST 09224-00010

Fig. 367: Removing Air Fuel Ratio Sensor (Bank 1 Sensor 1)

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

a. Using SST, remove the sensor.

SST 09224-00010

Fig. 368: Removing Air Fuel Ratio Sensor (Bank 2 Sensor 1)

INSTALLATION

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

a. Using SST, install the sensor.

SST 09224-00010

Torque: without SST

44 N*m (449 kgf*cm, 32 ft.*lbf)

with SST

40 N*m (408 kgf*cm, 30 ft.*lbf)

HINT:

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra



Use a torque wrench with a fulcrum length of 30 cm (11.8 in.). If using a torque wrench with
a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench
and SST based on the "without SST" torque specification (see REPAIR INSTRUCTION ).



Make sure SST and wrench are connected in a straight line.

Fig. 369: Installing Air Fuel Ratio Sensor (Bank 1 Sensor 1)

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

a. Using SST, install the sensor.

SST 09224-00010

Torque: without SST

44 N*m (449 kgf*cm, 32 ft.*lbf)

with SST

40 N*m (408 kgf*cm, 30 ft.*lbf)

HINT:



Use a torque wrench with a fulcrum length of 30 cm (11.8 in.). If using a torque wrench with
a length that is not 30 cm (11.8 in.), calculate the torque specification for the torque wrench
and SST based on the "without SST" torque specification (see REPAIR INSTRUCTION ).



Make sure SST and wrench are connected in a straight line.

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

Fig. 370: Installing Air Fuel Ratio Sensor (Bank 2 Sensor 1)

3. INSTALL FRONT EXHAUST PIPE ASSEMBLY

a. Install a new gasket and the exhaust pipe to the exhaust manifold RH with 3 new nuts.

Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf)

b. Install a new gasket and the exhaust pipe to the center exhaust pipe with the 2 bolts.

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

c. Connect the air fuel ratio sensor connector.

d. Connect the heated oxygen sensor connector and 2 clamps.

4. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY (except Regular Cab Standard Deck)

a. Connect the front No. 2 exhaust pipe to the exhaust pipe support.

b. Install a new gasket and the front No. 2 exhaust pipe to the exhaust manifold LH with 3 new nuts.

Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf)

c. Install a new gasket and the front No. 2 exhaust pipe to the center exhaust pipe with the 2 bolts.

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

d. Connect the air fuel ratio sensor connector.

e. Connect the heated oxygen sensor connector.

5. INSTALL FRONT NO. 2 EXHAUST PIPE ASSEMBLY (for Regular Cab Standard Deck)

a. Install a new gasket and the front No. 2 exhaust pipe to the exhaust manifold LH with 3 new nuts.

Torque: 54 N*m (551 kgf*cm, 40 ft.*lbf)

b. Connect the air fuel ratio sensor connector.

c. Connect the heated oxygen sensor connector and 2 clamps.

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra

6. INSTALL FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY (for Regular Cab Standard Deck)

a. Install a new gasket to the front No. 2 exhaust pipe.

b. Install a new gasket to the front No. 3 exhaust pipe.

c. Connect the front No. 3 exhaust pipe to the exhaust pipe support.

d. Install the front No. 3 exhaust pipe with the 4 bolts and 2 new nuts.

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

7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

HEATED OXYGEN SENSOR

COMPONENTS

NOTE:

Some systems need to be initialized after the cable is reconnected (see
INITIALIZATION ).

2008 Toyota Tundra

2008 ENGINE PERFORMANCE Engine Control System (1GR-FE) - Tundra