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

Last Modified: 04-05-2023	6.11:8.1.0	Doc ID: RM100000000Z9KG
Model Year Start: 2017	Model: Sienna	Prod Date Range: [08/2016 - ]
Title: 2GR-FKS (ENGINE CONTROL): HEATED OXYGEN SENSOR: INSTALLATION; 2017 - 2020 MY Sienna [08/2016 - ]

INSTALLATION

1. INSTALL HEATED OXYGEN SENSOR (for Bank 1)

(a) for 2WD:

(1) Using SST, install the heated oxygen sensor (for bank 1) to the front exhaust pipe assembly.

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If a component has been dropped or subjected to a strong impact, replace heated oxygen sensor (for bank 1).

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (See page ).
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	for 2WD
*B	for AWD
*a	Fulcrum Length of SST
*b	Fulcrum Length of Torque Wrench

(b) for AWD:

(1) Using SST, install the heated oxygen sensor (for bank 1) to the No. 3 exhaust pipe sub-assembly.

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If a component has been dropped or subjected to a strong impact, replace heated oxygen sensor (for bank 1).

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (See page ).
When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 300 mm (11.8 in.)): 39 N*m (398 kgf*cm, 29 ft.*lbf).

2. INSTALL HEATED OXYGEN SENSOR (for Bank 2)

(a) Using SST, install the heated oxygen sensor (for bank 2) to the front exhaust pipe assembly.

SST: 09224-00012

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If a component has been dropped or subjected to a strong impact, replace heated oxygen sensor (for bank 2).

HINT:

Calculate the torque wrench reading when changing the fulcrum length of the torque wrench (See page ).
When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 300 mm (11.8 in.)): 39 N*m (398 kgf*cm, 29 ft.*lbf).

*A	for 2WD
*B	for AWD
*a	Fulcrum Length of SST
*b	Fulcrum Length of Torque Wrench

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

4. INSTALL FRONT EXHAUST PIPE ASSEMBLY (for AWD)

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

6. INSTALL NO. 1 ENGINE UNDER COVER

7. INSTALL INSTRUMENT PANEL FINISH PANEL END LH

8. INSPECT FOR EXHAUST GAS LEAK