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 (2014-2020) / 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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