sensor TOYOTA SIENNA 2007 Service Repair Manual

EC–102GR-FE EMISSION CONTROL – CANISTER
EC
(3) Connect the positive (+) lead to terminal 7 and
the negative (-) lead to terminal 6.
(4) Check that the valve is closed.
If the result is not as specified, replace the
charcoal canister assembly.
(5) Install the detection pump.
INSTALLATION
1. INSTALL CHARCOAL CANISTER ASSEMBLY
(a) Install the 3 bolts and charcoal canister.
Torque: 29 N*m (296 kgf*cm, 21 ft.*lbf)
(b) Connect the purge line hose to the charcoal
canister.
(c) Connect the wire harness clamp.
(d) Connect the vapor pressure sensor connector.
(e) Connect the charcoal canister filter sub-assembly to
the charcoal canister.
(f) Connect the fuel tank vent hose to the charcoal
canister.
2. INSTALL CHARCOAL CANISTER PROTECTOR
(a) Install the 6 bolts and charcoal canister protector.
Torque: 5.0 N*m (51 kgf*cm, 44 in.*lbf)
A128109E01
A162862

2GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 2WD)EC–21
EC
INSTALLATION
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 a wrench are connected
in a straight line.
(b) Connect the sensor connector.
2. 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
(a) Install the exhaust manifold RH with a new gasket
and 6 nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(b) Install the exhaust manifold stay with the nut and
bolt.
Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf)
(c) Connect the air fuel ratio sensor (for Bank 1 Sensor
2) connector.
A162948E01
A163255E01
A162951
A162950

EC–222GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 2WD)
EC
4. INSTALL FRONT 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.
(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.
(c) Install 2 new gaskets to the front exhaust pipe
assembly.
(d) Install the front exhaust pipe assembly with the 4
nuts.
Torque: 62 N*m (632 kgf*cm, 46 ft.*lbf)
A077857
A076194E04
A162908

2GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 2WD)EC–23
EC
(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) Install the No. 1 exhaust pipe support bracket with
the 2 new nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(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
A162949
A165516

EC–82GR-FE EMISSION CONTROL – CANISTER
EC
REMOVAL
1. REMOVE CHARCOAL CANISTER PROTECTOR
(a) Remove the 6 bolts and charcoal canister protector.
2. REMOVE CHARCOAL CANISTER ASSEMBLY
(a) Disconnect the fuel tank vent hose from the
charcoal canister.
(1) Push the connector deep inside.
(2) Pinch portion A.
(3) Pull out the connector.
(b) Disconnect the charcoal canister filter sub-assembly
from the charcoal canister.
(1) Push the connector deep inside.
(2) Pinch portion A.
(3) Pull out the connector.
(c) Disconnect the vapor pressure sensor connector.
(d) Disconnect the wire harness clamp.
(e) Disconnect the purge line hose from the charcoal
canister.
(f) Remove the 3 bolts and charcoal canister.
INSPECTION
1. INSPECT CHARCOAL CANISTER ASSEMBLY
(a) Visually check the charcoal canister for cracks or
damage.
If cracks or damage are found, replace the charcoal
canister assembly.
A162860E01
A162861
A162862
A163448

EC–282GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 4WD)
EC
5. REMOVE AIR FUEL RATIO SENSOR (for Bank 1
Sensor 1)
(a) Using SST, remove the sensor.
SST 09224-00010
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.
INSTALLATION
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)
(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
A163254E01
A161867E02
Tester Connection Specified Condition
1 (HT) - 2 (+B) 1.8 to 3.4
at 20C (68F)
1 (HT) - 4 (AF-) 10 k
or higher
A162948E01
A135167E01

2GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 4WD)EC–29
EC
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
(a) Install the exhaust manifold RH with a new gasket
and 6 nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(b) Install the exhaust manifold stay with the nut and
bolt.
Torque: 35 N*m (357 kgf*cm, 26 ft.*lbf)
(c) Connect the air fuel ratio sensor (for Bank 1 Sensor
2) connector.
4. 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.
(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.
(c) Install 2 new gaskets to the front exhaust pipe
assembly.
A162951
A162950
A077857
A076194E04

EC–302GR-FE EMISSION CONTROL – AIR FUEL RATIO SENSOR (for 4WD)
EC
(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)
(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
A163387
A162949
A163447

2GR-FE EMISSION CONTROL – HEATED OXYGEN SENSOR (for 4WD)EC–39
EC
INSPECTION
1. 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. 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)
(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
(a) Install 2 new gaskets to the front exhaust pipe
assembly.
A161881E02
Tester Connection Specified Condition
1 (HT) - 2 (+B) 11 to 16
at 20C (68F)
1 (HT) - 4 (E1) 10 k
or higher
A161881E04
Tester Connection Specified Condition
3 (HT) - 2 (+B) 11 to 16
at 20C (68F)
3 (HT) - 4 (E1) 10 k
or higher
A163271E01

EC–402GR-FE EMISSION CONTROL – HEATED OXYGEN SENSOR (for 4WD)
EC
(b) Install the front exhaust pipe assembly with the 2
bolts and 2 nuts.
Torque: Bolt
43 N*m (440 kgf*cm, 32 ft.*lbf)
Nut
62 N*m (632 kgf*cm, 46 ft.*lbf)
(c) Install the No. 1 exhaust pipe support bracket with 2
new nuts.
Torque: 21 N*m (214 kgf*cm, 15 ft.*lbf)
(d) Connect the heated oxygen sensor (for Bank 2
sensor 2) connector.
A163386
A165516