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Kia Sedona: Heated Oxygen Sensor (HO2S) Repair procedures - Engine Control System - Engine Control / Fuel System - Kia Sedona YP Service ManualKia Sedona: Heated Oxygen Sensor (HO2S) Repair procedures

Third generation YP (2014-2025) / Kia Sedona YP Service Manual / Engine Control / Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Repair procedures

Inspection
1.
Turn the ignition switch OFF.
2.
Disconnect the HO2S connector.
3.
Measure resistance between the HO2S terminals 3 and 4.
4.
Check that the resistance is within the specification.
Specification: 3.3 ~ 4.1 Ω [20°C(68°F)]
Removal
   
Note that the SST (Part No : 09392-1Y100 or 09392-2H100) is used when removing the heated oxygen sensor.
[Bank 1/Sensor 1]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the connector (A).

3.
Remove the heated oxygen sensor (A).

[Bank 1/Sensor 2]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the connector (A).

3.
Remove the heated oxygen sensor (A).

[Bank 2/Sensor 1]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the connector (A).

3.
Remove the heated oxygen sensor (A).

[Bank 2/Sensor 2]
1.
Turn the ignition switch OFF and disconnect the battery negative (-) terminal.
2.
Disconnect the connector (A).
3.
Remove the heated oxygen sensor (B).

Installation
   
•
Install the component to the specified torques.
•
Note that internal damage may occur when the component is dropped. In this case, use it after inspecting.
•
DO NOT use a cleaner, spray, or grease to sensing element and connector of the sensor as oil-based products may cause malfunctions in sensor performance.
•
Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on).
   
Note that the SST (Part No : 09392-1Y100 or 09392-2H100) is used when removing the heated oxygen sensor.
1.
Install in the reverse order of removal.
Heated oxygen sensor installation:
35.3 ~ 45.1 N.m (3.6 ~ 4.6 kgf.m, 26.0 ~ 33.3 lb-ft)
Heated Oxygen Sensor (HO2S) Schematic Diagrams
Circuit Diagram ...

Heated Oxygen Sensor (HO2S) Troubleshooting
Wave Form ...

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