Kia Cadenza YG: Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation
Kia Cadenza YG 2016-2021 Service Manual / Engine Control / Fuel System / Engine Control System / Heated Oxygen Sensor (HO2S) Description and Operation
| Description |
Heated Oxygen Sensor (HO2S) consists of the zirconium and the
alumina and is installed on upstream and downstream of the Warm-up
Catalytic Converter (WCC).
After it compares oxygen consistency of the atmosphere with
the exhaust gas, it transfers the oxygen consistency of the exhaust gas
to the ECM. When A/F ratio is rich or lean, it generates approximately
1V or 0V respectively. In order that this sensor normally operates, the
temperature of the sensor tip is higher than 370°C (698°F). So it has a
heater which is controlled by the ECM duty signal.
When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.
Removal [Knock Sensor #1 (Bank 1)] 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Disconnect the knock sensor connector (A).
Specification A/F Ratio (λ)Output Voltage(V)RICHMin. 0.8LEANMax. 0.1 ItemSpecificationHeater Resistance (Ω)3.3 ~ 4.1[20°C(68°F)]
Other information:
Kia Cadenza YG 2016-2021 Service Manual: Surround View Monitoring Unit Repair procedures
Removal 1. Disconnect the negative (-) battery terminal. 2. Remove the glove box housing. (Refer to Body - "Glove Box Housing") 3. Remove the SVM unit (B) after disconnecting the connectors (A) and mounting bolts. Installation 1. Install the SVM unit.
Kia Cadenza YG 2016-2021 Service Manual: Components and Components Location
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