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 |
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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. |
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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.
Click here
- 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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READ NEXT:
Ignition Coil And Spark Plug
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
SEE MORE:
Installation
INSTALLATION PROCEDURE 1. INSTALL STOP LIGHT SWITCH ASSEMBLY (a) Turn the stop light switch assembly in the clockwise direction until it reaches the standard shaft protrusion amount and temporarily install it. Standard: 0.5 to 1.7 mm (0.0197 to 0.0669 in.) NOTICE: Do not depress the brake pedal.
Diagnosis System
DIAGNOSIS SYSTEM DESCRIPTION (a) Lighting system data and the Diagnostic Trouble Codes (DTCs) can be read from the Data Link Connector 3 (DLC3) of the vehicle. When the system seems to be malfunctioning, use the Techstream to check for malfunctions, and then perform repairs. CHECK DLC3 (a) Check the
