Kia Niro: Engine Control System / Heated Oxygen Sensor (HO2S) Repair procedures
| 1. |
Switch "OFF" the ignition.
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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].
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Specification: 2.5 - 4.0Ω [20°C(68°F)]
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| 4. |
Measure resistance between the HO2S terminals 3 and 4 [B1/S2].
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Specification: Approx. 9.0 Ω [21°C(69.8°F)]
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| 5. |
Check that the resistance is within the specification.
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Note that the SST (Part No.: 09392-1Y100 or 09392-2H100) can be used
for removing the heated oxygen sensor.
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| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
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| 2. |
Disconnect the connector (A), and then remove the sensor (B).
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Heated oxygen sensor :
39.2 - 49.1 N·m (4.0 - 5.0 kgf·m, 28.9 - 36.2 lb·ft)
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| 1. |
Switch "OFF" the ignition and disconnect the negative (-) battery terminal.
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| 2. |
Disconnect the connector (A), and then remove the sensor (B).
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Heated oxygen sensor :
39.2 - 49.1 N·m (4.0 - 5.0 kgf·m, 28.9 - 36.2 lb·ft)
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| • |
Install the component to the specified torque.
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| • |
Note that internal damage may occur when the component is dropped.
If the component has been dropped, inspect before installing.
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| • |
Keep the sensing element and connector free from cleaner, spray
or grease as oil substance may cause the sensor to malfunction.
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| • |
Sensor and its wiring may get damaged from contact with the exhaust
system (e.g. Exhaust Manifold, Catalytic Converter).
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| 1. |
Install in the reverse order of removal.
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Circuit Diagram
Harness Connector
[Bank 1 / Sensor 1]
[Bank 1 / Sensor 2]
...
Specification
Pressure
Output Voltage (V) [Vref=5V]
bar
[MPa (kgf/cm², psi)]
0
0 (0, 0)
0 ...
Heated Oxygen Sensor (HO2S) Schematic diagrams
Rail Pressure Sensor (RPS) Specifications