Hyundai Santa Fe: Engine Control System / Heated Oxygen Sensor (HO2S). Repair procedures
1. |
Turn the ignition switch OFF.
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2. |
Disconnect the HO2S connector.
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3. |
Measure resistance between the HO2S terminals 4 and 5 [B1/S1] [Euro-V].
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4. |
Measure resistance between the HO2S terminals 3 and 4 [B1/S1] [Except
Euro-V].
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5. |
Measure resistance between the HO2S terminals 3 and 4 [B1/S2].
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6. |
Check that the resistance is within the specification.
Specification : Refer to "Specification"
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1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
cable.
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2. |
Disconnect the connector (A), and then remove the sensor (B).
Tightening Torque :
39.2 - 49.1 N.m (4.0 - 5.0 kgf.m, 28.9 - 36.2 lb-ft)
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• |
Note that the SST (Part No. : 09392-2H100) is useful
when removing the heated oxygen sensor.
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[Bank 1 / Sensor 1]


[Bank 1 / Sensor 2]


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Install the component with the specified torques.
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Note that internal damage may occur when the component is dropped.
In this case, use it after inspecting.
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DON’T use a cleaner, spray, or grease to sensing element and
connector of the sensor because oil component in them may malfunction
the sensor performance.
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Sensor and its wiring may be damaged in case of contacting with
the exhaust system (Exhaust Manifold, Catalytic Converter, and
so on).
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1. |
Installation is reverse of removal.
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