Toyota Sienna Service Manual: Installation

Toyota Sienna Service Manual / Engine / 2Gr-fe emission control / Air fuel ratio sensor (for 4wd) / Installation

1. INSTALL AIR FUEL RATIO SENSOR (for Bank 2 Sensor 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 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 wrench are connected in a straight line.

(b) Connect the sensor connector.

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

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 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 wrench are connected in a straight line.

3. INSTALL EXHAUST MANIFOLD RH

INSTALL EXHAUST MANIFOLD RH

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

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

INSTALL EXHAUST MANIFOLD RH

4. INSTALL CENTER EXHAUST PIPE ASSEMBLY

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.

INSTALL CENTER 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.

INSTALL CENTER EXHAUST PIPE ASSEMBLY

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

Torque: Bolt 43 N*m (440 kgf*cm, 32 ft.*lbf) Nut 62 N*m (632 kgf*cm, 46 ft.*lbf)

INSTALL CENTER EXHAUST PIPE ASSEMBLY

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

Torque: 43 N*m (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

INSPECT FOR EXHAUST GAS LEAK

Inspection

1. Inspect air fuel ratio sensor (A) measure the resistance of the sensor. Standard resistance If the resistance is not as specified, replace the sensor. ...

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 ...

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