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) 2018-2023 Service Manual: Front Seat Shield Inner Cover Repair procedures
Replacement    • Put on gloves to prevent hand injuries.    • Wh ...

Hyundai Kona (OS) 2018-2023 Owners Manual: SRS care
The SRS is virtually maintenancefree and there are no parts you can safely service by yourself. If the SRS air bag warning light does not illuminate when the ignition switch is in the ON position, or continuously remains on, we recommend that the system be immediately inspected by an authorized H ...