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 (2015-2019) Service Manual: Repair procedures

Operation and Leakage Check Check all of the following items: Component Procedure Brake Booster (A) Check brake operation by applying the brakes during a test drive. If the brakes do not work properly, check the brake boo ...

Kia Sportage QL (2015-2019) Service Manual: Direct Electro Hydraulic Actuator Coupling Components and components location

Components Location 1. Transfer assembly 2. Propeller shaft 3. Coupling assembly Component 1. Coupling assembly 2. Input shaft 3. Pressure sensor 4. Extension wiring 5. Oil hydr ...