Kia Sportage: 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.

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 - 4.0 [20°C(68°F)] HO2S ...

Heated Oxygen Sensor (HO2S) Schematic diagrams

Circuit Diagram Harness Connector [Bank 1 / Sensor 1] [Bank 1 / Sensor 2] ...

Other information:

Kia Sportage QL (2015-2026) Owners Manual: Safety chains

You should always attach chains between your vehicle and your trailer. Cross the safety chains under the tongue of the trailer so that the tongue will not drop to the road if it becomes separated from the hitch. Instructions about safety chains may be provided by the hitch manufacturer or by ...

Kia Sportage QL (2015-2026) Service Manual: General information

General Troubleshooting Information Before Troubleshooting 1. Check applicable fuses in the appropriate fuse/relay box. 2. Check the battery for damage, state of charge, cleanliness and tight connections. (Refer to ...