Kia Optima: Inspection - Heated Oxygen Sensor (HO2S). Repair procedures - Engine Control System - Engine Control/Fuel System - Kia Optima TF 2011-2025 Service ManualKia Optima: Inspection

1. Turn the ignition switch OFF.
2. Disconnect the HO2S connector.
3. Measure resistance between the HO2S terminals 4 and 5 [B1/S1].
4. Measure resistance between the HO2S terminals 3 and 4 [B1/S2].
5. Check that the resistance is within the specification.

Specification: Refer to “Specification”


Heated Oxygen Sensor (HO2S). Repair procedures
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Removal
1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the connector (A), and then remove the sensor (B). ...

See also:

Inspection
1. Ignition "OFF" 2. Disconnect evaporator temperature sensor. 3. Using the multi-tester, Measure resistance between terminal "1" ...

Special Tools
Use special tools when they are required. ...

Tire maintenance
In addition to proper inflation, correct wheel alignment helps to decrease tire wear. If you find a tire is worn unevenly, have your dealer check the wheel alignment. When you have new tires ...

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