Toyota Sienna Service Manual: Inspection

Toyota Sienna Service Manual / Engine / 2Gr-fe emission control / Inspection

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

INSPECT HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

(a) Measure the resistance of the sensor.

Standard resistance

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

2. INSPECT HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

INSPECT HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

(a) Measure the resistance of the sensor.

Standard resistance

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

Installation

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

INSTALL HEATED OXYGEN SENSOR (for Bank 2 Sensor 2)

(a) Using SST, install the heated oxygen sensor to the front exhaust pipe.

SST 09224-00010

Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use with SST 44 N*m (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 a wrench are connected in a straight line.

2. INSTALL FRONT EXHAUST PIPE ASSEMBLY

INSTALL FRONT EXHAUST PIPE ASSEMBLY

(a) Check the 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.

INSTALL FRONT EXHAUST PIPE ASSEMBLY

(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.

(d) Install the front exhaust pipe assembly with the 4 nuts.

Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf)

Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf)

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

Torque: 43 N*m (438 kgf*cm, 32 ft.*lbf) (f) Install the No. 1 exhaust pipe support bracket with 2 new nuts.

Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)

INSTALL FRONT EXHAUST PIPE ASSEMBLY

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

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

INSTALL HEATED OXYGEN SENSOR (for Bank 1 Sensor 2)

(a) Using SST, install the heated oxygen sensor.

SST 09224-00010

Torque: 40 N*m (408 kgf*cm, 30 ft.*lbf) for use with SST

44 N*m (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 a wrench are connected in a straight line.

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

4. CONNECT CABLE TO NEGATIVE BATTERY TERMINAL

5. INSPECT FOR EXHAUST GAS LEAK

Heated oxygen sensor (for 2wd)

Components Removal 1. DISCONNECT CABLE FROM NEGATIVE BATTERY TERMINAL CAUTION: Wait at least 90 seconds after disconnecting the cable from the nagative (-) battery terminal to ...

Heated oxygen sensor (for 4wd)

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