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) 2018-2026 Owners Manual: Hazardous driving conditions
When hazardous driving elements are encountered such as water, snow, ice, mud and sand, take the following precautions: Drive cautiously and maintain a longer braking distance. Avoid abrupt braking or steering. When your vehicle is stuck in snow, mud, or sand, use the second gear. Accelerate ...

Hyundai Kona (OS) 2018-2026 Service Manual: Hood Weatherstrip Repair procedures
Replacement 1. Remove the hood weatherstrip (A).    • Be careful not to scratch the hood weatherstrip. ...