Kia Sorento: Heated Oxygen Sensor (HO2S)

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.

Installation

   • Install the component with the specified torques. • ...

Specification

HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.5 ~ 4.0 [20°C(68°F)] HO2S [Bank 1/Sensor 2] A/F Ratio (λ) ...

See also:

Heater & A/C Control Unit (DATC) Component
Connector Pin Function Connector Pin No Function Connector Pin No Function A 1 Battery (+) A 29 ...

Component Location
1. Hood switch 2. Burglar horn 3. IPM & RF receiver 4. Key warning switch 5. Front door switch 6. Front door lock actuator & switch 7. Rear door lock actuator ...

In-car Sensor Inspection
1. Turn the ignition switch ON. 2. Blow air with changing temperature into the in-car sensor air inlet. Measure the sensor resistance betwe ...