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) 2018-2025 Owners Manual: Charging System Warning Light
This warning light illuminates: • When there is a malfunction with either the alternator or electrical charging system. If there is a malfunction with either the alternator or electrical charging system: 1. Drive carefully to the nearest safe location and stop your vehicle. 2. Turn the engine o ...

Hyundai Kona (OS) 2018-2025 Service Manual: Intercooler Components and components location
Components 1. Intercooler 2. Intercooler air guard 3. Intercooler inlet hose 4. Intercooler inlet pipe 5. Intercooler outlet hose 6. Intercooler outlet pipe 7. Boost pressure sensor (BPS) 8. RCV hose 9. RCV Solenoid hose A 10. Reci ...