2GR-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR: INSTALLATION; 2017 - 2020 MY Sienna [08/2016

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM100000000Z9KC
Model Year Start: 2017	Model: Sienna	Prod Date Range: [08/2016 - ]
Title: 2GR-FKS (ENGINE CONTROL): AIR FUEL RATIO SENSOR: INSTALLATION; 2017 - 2020 MY Sienna [08/2016 - ]

INSTALLATION

PROCEDURE

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

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (bank 1).

Click here

(a) Using SST, install the air fuel ratio sensor (for bank 1) to the exhaust manifold sub-assembly RH (TWC: front catalyst).

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If the air fuel ratio sensor (for bank 1) has been struck or dropped, replace it.

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 255 mm (10.0 in.)):
39 N*m (398 kgf*cm, 29 ft.*lbf)

*a	Fulcrum Length of SST
*b	Fulcrum Length of Torque Wrench

2. INSTALL EXHAUST MANIFOLD TO HEAD GASKET (for Bank 1)

Click here

3. INSTALL EXHAUST MANIFOLD SUB-ASSEMBLY RH (TWC: Front Catalyst)

Click here

4. INSTALL MANIFOLD STAY

Click here

5. INSTALL FRONT EXHAUST PIPE ASSEMBLY (for 2WD)

Click here

6. INSTALL FRONT EXHAUST PIPE ASSEMBLY (for AWD)

Click here

7. INSTALL PROPELLER WITH CENTER BEARING SHAFT ASSEMBLY (for AWD)

Click here

8. INSTALL NO. 2 ENGINE UNDER COVER (for AWD)

Click here

9. INSTALL NO. 1 ENGINE UNDER COVER

Click here

10. INSTALL INSTRUMENT PANEL FINISH PANEL END LH

for 2WD
Click here
for AWD
Click here

11. INSTALL AIR FUEL RATIO SENSOR (for Bank 2)

HINT:

Perform "Inspection After Repair" after replacing the air fuel ratio sensor (for bank 2).

Click here

(a) Using SST, install the air fuel ratio sensor (for bank 2) to the exhaust manifold sub-assembly LH (TWC: front catalyst).

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If the air fuel ratio sensor (for bank 2) has been struck or dropped, replace it.

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
Click here
When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 255 mm (10.0 in.)):
39 N*m (398 kgf*cm, 29 ft.*lbf)

*a	Fulcrum Length of SST
*b	Fulcrum Length of Torque Wrench

12. INSTALL NO. 2 EXHAUST MANIFOLD HEAT INSULATOR

for 2WD:
Click here
for AWD:
Click here

13. INSTALL V-BANK COVER SUB-ASSEMBLY

Click here

14. INSPECT FOR EXHAUST GAS LEAK

for 2WD:
Click here
for AWD:
Click here

15. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing an air fuel ratio sensor.

Click here