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:

Piston and Connecting Rod Inspection
Connecting Rod 1. Check the connecting rod end play. Using a feeler gauge, measure the end play while moving the connecting rod back and forth. ...

G-Sensor Calibration
1. Ignition "OFF", connect GDS. 2. Ignition "ON" & Engine "OFF" select vehicle name and ESP system. ...

Circuit Diagram
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