Hyundai Kona: Engine Control System / Heated Oxygen Sensor (HO2S) Description and operation

Heated Oxygen Sensor (HO2S) consists of zirconium and alumina and is installed both upstream and downstream of the Manifold Catalytic Converter. The sensor output voltage varies in accordance with the air/fuel ratio.

The sensor must be hot in order to operate normally. To keep it hot, the sensor has a heater which is controlled by the ECM via a duty cycle signal. When the exhaust gas temperature is lower than the specified value, the heater warms the sensor tip.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold (Refer ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] (Linear type) Item Specification Heater Resistance (Ω) 2.4 - 4.0 [20°C (68°F)] ...

Other information:

Hyundai Kona (OS) 2018-2024 Service Manual: Auto Defogging Sensor Repair procedures
Diagnosis With GDS 1. The heating, ventilation and air conditioning can be quickly diagnosed failed parts with vehicle diagnostic system (GDS). ※ The diagnostic system (GDS) provides the following information. (1) Self d ...

Hyundai Kona (OS) 2018-2024 Service Manual: Sunroof Motor Repair procedures
Inspection 1. Disconnect the negative (-) battery terminal. 2. Remove the roof trim. (Refer to Body - "Roof Trim") 3. Disconnect the sunroof motor (A) connector. ...