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) 2018-2021 Service Manual: Special service tools
Special Service Tools Tool (Number and Name) IIIustration Use 09546-3X100 Shock absorber lock nut removal tool Used for remove the shock absorber lock nut 09568-1S100 Ball joint r ...

Hyundai Kona (OS) 2018-2021 Service Manual: DCT (Dual Clutch Transmission) Repair procedures
Removal 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air Cleaner") 2. Remove the battery and battery tray. (Refer to Engine Electrical System - " Battery") ...