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Home >> Toyota >> 2009 >> Tundra 2WD V6-4.0L (1GR-FE) >> Repair and Diagnosis >> Powertrain Management >> Computers and Control Systems >> Oxygen Sensor >> Service and Repair >> Air Fuel Ratio Sensor >> Installation
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Installation








1GR-FE ENGINE CONTROL SYSTEM: AIR FUEL RATIO SENSOR: INSTALLATION

INSTALLATION

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





(a) Using SST, install the sensor.
SST: 09224-00010
without SST - Torque: 44 Nm (449 kgf-cm, 32 ft-lbf)
with SST - Torque: 40 Nm (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 Service Precautions.
- Make sure SST and wrench are connected in a straight line.

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





(a) Using SST, install the sensor.
SST: 09224-00010
without SST - Torque: 44 Nm (449 kgf-cm, 32 ft-lbf)
with SST - Torque: 40 Nm (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 Service Precautions.
- Make sure SST and wrench are connected in a straight line.

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 Nm (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 Nm (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 Nm (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 Nm (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 Nm (551 kgf-cm, 40 ft-lbf)
(b) Connect the air fuel ratio sensor connector.
(c) Connect the heated oxygen sensor connector and 2 clamps.
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 Nm (489 kgf-cm, 35 ft-lbf)
7. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL
NOTE: Some systems need to be initialized after the cable is reconnected Repair Instruction - Initialization.
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