Toyota Tundra. Manual — part 1294

Fig. 371: Identifying Heated Oxygen Sensor Replacement Components With Torque Specification (1 Of
2)

2008 Toyota Tundra

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

Fig. 372: Identifying Heated Oxygen Sensor Replacement Components With Torque Specification (2 Of
2)

ON-VEHICLE INSPECTION

1. INSPECT HEATED OXYGEN SENSOR

a. Disconnect the 2 sensor connectors.

b. Measure the resistance according to the value (s) in the table below.

2008 Toyota Tundra

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

Standard resistance (for Bank 1 sensor 2)

TESTER CONNECTION SPECIFIED CONDITION

Standard resistance (for Bank 2 sensor 2)

TESTER CONNECTION SPECIFIED CONDITION

If the result is not as specified, replace the sensor.

c. Connect the 2 sensor connectors.

Fig. 373: Identifying Heated Oxygen Sensor Connector Terminals

REMOVAL

1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL

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

Tester Connection Condition Specified Condition

1 (HT1B) - 2 (+B) 20°C (68°F)

11 to 16 ohms

Tester Connection Condition Specified Condition

1 (HT2B) - 2 (+B) 20°C (68°F)

11 to 16 ohms

NOTE:



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



After the ignition switch is turned OFF, the navigation system
requires approximately 90 seconds to record various types of
memory and settings. As a result, after turning the ignition switch
OFF, wait 90 seconds or more before disconnecting the cable from
the negative (-) battery terminal.

2008 Toyota Tundra

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

(See REMOVAL )

3. REMOVE FRONT NO. 2 EXHAUST PIPE ASSEMBLY (for Regular Cab Standard Deck) (See

REMOVAL )

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

REMOVAL )

5. REMOVE FRONT EXHAUST PIPE ASSEMBLY (See REMOVAL )

6. REMOVE HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

a. Using SST, remove the sensor.

SST 09224-00010

Fig. 374: Removing Heated Oxygen Sensor (Bank 1 Sensor 2)

7. REMOVE HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

a. Using SST, remove the sensor.

SST 09224-00010

Fig. 375: Removing Heated Oxygen Sensor (Bank 2 Sensor 2)

INSTALLATION

1. INSTALL HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

a. Using SST, install the sensor.

Torque: without SST

2008 Toyota Tundra

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