Kia Sportage: 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].
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].
Specification: 3.3 - 4.1Ω [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) is useful when
removing the heated oxygen sensor.
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1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
terminal.
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2. |
Disconnect the connector (A), and then remove the sensor (B).


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1. |
Turn the ignition switch OFF and disconnect the battery negative (-)
terminal.
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2. |
Disconnect the connector (A), and then remove the sensor (B).


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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.
If the component has been dropped, inspect before installing.
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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. |
Install in the reverse order of removal.
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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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)
...
Other information:
ECM Terminal And Input/Output
signal
ECM Terminal Function
Connector [A]
Terminal
Description
Connected to
1
-
2
-
3 ...
Signal Waveform
Service data review releated with fuel pressure sensor at idle and acceleration.
(Inspect low pressure fuel line between fuel pump and high pressure pump first
when the pressure of low pressure line is displayed low at idle.)
A : Idle
B : Accele ...