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:

Circuit Diagram
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Shift Lever Installation
1. Install in the reverse order of removal.    Set shift lever and inhibitor ...

Troubleshooting
Ignition System Symptom Suspect Area Remedy Engine will not start or is hard to start (Cranks OK) Ignition lock switch Inspect ignition ...