Kia Sorento: Heated Oxygen Sensor (HO2S) - Engine Control System - Engine Control / Fuel System - Kia Sorento XM 2011-2019 Service ManualKia Sorento: Heated Oxygen Sensor (HO2S)

Second Generation XM (2011-2019) / Kia Sorento XM 2011-2019 Service Manual / Engine Control / Fuel System / Engine Control System / 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
   Х Install the component with the specified torques. Х ...

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:

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Side Impact Sensor (SIS) Removal
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Battery Removal
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