Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual: Installation

Lexus RX (RX 350L, RX450h) 2016-2025 Repair Manual / Engine & Hybrid System / 2gr-fks (engine Control) / Heated Oxygen Sensor / Installation

INSTALLATION

PROCEDURE

1. INSTALL HEATED OXYGEN SENSOR (for Bank 2)

HINT:

Perform "Inspection After Repairs" after replacing the heated oxygen sensor.

Click here

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

SST: 09224-00011

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If the heated oxygen sensor 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

Torque Wrench Fulcrum Length

2. INSTALL FRONT EXHAUST PIPE ASSEMBLY

Click here

3. INSTALL NO. 1 EXHAUST PIPE SUPPORT BRACKET (for Lower Side)

Click here

4. INSTALL HEATED OXYGEN SENSOR (for Bank 1)

HINT:

Perform "Inspection After Repairs" after replacing the heated oxygen sensor.

Click here

(a) Using SST, install the heated oxygen sensor to the front No. 3 exhaust pipe sub-assembly.

SST: 09224-00011

Torque:

Specified tightening torque :

44 N·m {449 kgf·cm, 32 ft·lbf}

NOTICE:

If the heated oxygen sensor 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

Torque Wrench Fulcrum Length

(b) Install the wire harness clamp bracket to the heated oxygen sensor.

HINT:

Make sure the direction of the wire harness clamp bracket is as shown in the illustration.

*1

Wire Harness Clamp Bracket

*a

Left of Vehicle

*b

180°

5. INSTALL FRONT NO. 3 EXHAUST PIPE SUB-ASSEMBLY

Click here

6. INSPECT FOR EXHAUST GAS LEAK

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7. INSTALL FRONT FLOOR COVER LH

Click here

8. PERFORM INITIALIZATION

(a) Perform "Inspection After Repair" after replacing the heated oxygen sensor.

Click here

    Inspection
    INSPECTION PROCEDURE 1. INSPECT HEATED OXYGEN SENSOR (a) for Bank 1: (1) Measure the resistance according to the value(s) in the table below. Standard Resistance: Tester Connection Condition ...

    Ignition Coil And Spark Plug
    ...

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