Lexus NX: Heated Oxygen Sensor
Components
COMPONENTS
ILLUSTRATION
| *1 | FRONT EXHAUST PIPE SUB-ASSEMBLY | *2 | HEATED OXYGEN SENSOR |
| *3 | COMPRESSION SPRING | *4 | GASKET |
.png) | N*m (kgf*cm, ft.*lbf): Specified torque | * | For use with SST |
| ● | Non-reusable part | - | - |
Removal
REMOVAL
PROCEDURE
1. REMOVE FRONT EXHAUST PIPE SUB-ASSEMBLY
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2. REMOVE HEATED OXYGEN SENSOR
| (a) Using SST, remove the heated oxygen sensor. SST: 09224-00011 |
|
Inspection
INSPECTION
PROCEDURE
1. INSPECT HEATED OXYGEN SENSOR
| (a) Measure the resistance according to the value(s) in the table below. Standard Resistance:
If the result is not as specified, replace the heated oxygen sensor. |
|
Installation
INSTALLATION
CAUTION / NOTICE / HINT
HINT:
Perform "Inspection After Repairs" after replacing the air fuel ratio sensor.
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PROCEDURE
1. INSTALL HEATED OXYGEN SENSOR
| *a | Torque Wrench Fulcrum Length |
HINT:
Perform "Inspection After Repairs" after replacing the air fuel ratio sensor.
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(a) Using SST, install the heated oxygen sensor to the front exhaust pipe sub-assembly.
SST: 09224-00011
Torque:
Specified tightening torque
44 N*m (449 kgf*cm, 32 ft.*lbf)
NOTICE:
Replace with a new part if it is dropped or if it receives a strong impact.
HINT:
-
Calculate the torque wrench reading when changing the fulcrum length of the torque wrench.
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- When using SST (fulcrum length of 30 mm (1.18 in.)) + torque wrench (fulcrum length of 180 mm (7.09 in.)): 37.7 N*m (384 kgf*cm, 28 ft.*lbf)
(b) Connect the heated oxygen sensor connector.
2. INSTALL FRONT EXHAUST PIPE SUB-ASSEMBLY
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3. INSPECT FOR EXHAUST GAS LEAK
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ComponentsCOMPONENTS ILLUSTRATION *1 IGNITION COIL ASSEMBLY *2 NO. 1 ENGINE COVER SUB-ASSEMBLY *3 SPARK PLUG - - N*m (kgf*cm, ft.*lbf) : Specified torque - - Remova
Parts Location
PARTS LOCATION ILLUSTRATION *1 IGNITION COIL ASSEMBLY *2 ECM *3 NO. 1 ENGINE ROOM RELAY BLOCK LH - IGN FUSE *4 SPARK PLUG
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Inspection
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