Kia Sorento: Heated Oxygen Sensor (HO2S) Removal and Installation

Special Service Tool

Tool Name / Number	Illustration	Description
Heated oxygen sensor socket wrench 09392 - 1Y100		Used for removing / installing the heated oxygen sensor ※SST 09392 - 2H100 also can be used

Removal

Front Heated Oxygen Sensor (HO2S)

1.	Disconnect the battery negative ( - ) terminal.

2.	Remove the engine cover. (Refer to Engine Mechanical System - "Engine Cover")

3.	Disconnect the Heated Oxygen Sensor (HO2S) connector (A).

4.	Separate the HO2S connector (A) by pulling it in the direction of arrow from the bracket.

5.	Separate the HO2S wiring (A) after removing the fastener.

Remove the front HO2S (A) by using the SST (09392 - 1Y100 or 09392 - 2H100).

Tightening torque :

39.2 - 49.0 N·m (4.0 - 5.0 kgf·m, 28.9 - 36.2 lb·ft)

Engine Control / Fuel System — Engine Control System / Heated Oxygen Sensor (HO2S) / Removal and Installation / Removal illustration

Rear Heated Oxygen Sensor (HO2S)

1.	Disconnect the battery negative ( - ) terminal.

2.	Remove the engine cover. (Refer to Engine Mechanical System - "Engine Cover")

3.	Disconnect the Heated Oxygen Sensor (HO2S) connector (A).

4.	Separate the HO2S connector (A) by pulling it from the bracket in the direction of the arrow.

5.	Separate the HO2S wiring (A) after removing the fastener.

Remove the rear HO2S (A) by using the SST (09392 - 1Y100 or 09392 - 2H100).

Tightening torque :

39.2 - 49.0 N·m (4.0 - 5.0 kgf·m, 28.9 - 36.2 lb·ft)

Engine Control / Fuel System — Engine Control System / Heated Oxygen Sensor (HO2S) / Removal and Installation / Removal illustration

Installation

Install in the reverse order of removal.

•	Install the Heated Oxygen Sensor (HO2S) to the specified torque.

•	If the HO2S is dropped, it may cause internal damage. (Do not reuse)

•	Do not use a cleaner, spray or grease on the sensing element and connector because they could cause a malfunction of sensor.

•	Sensor and its wiring may be damaged in case of contacting with the exhaust system (Exhaust Manifold, Catalytic Converter, and so on).

On Vehicle Inspection 1. The engine control system can be more quickly diagnosed for problems with the KDS. (Refer to "DTC guide") ...

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