Kia Carens: 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.

Knock Sensor (KS) Repair procedures

Removal 1. Turn the ignition switch OFF and disconnect the battery negative (-) cable. 2. Remove the intake manifold. (Refer to En ...

Heated Oxygen Sensor (HO2S) Specifications

Specification HO2S [Bank 1/Sensor 1] Item Specification Heater Resistance (Ω) 2.4 ~ 4.0 [20°C(68°F)] HO2S ...

Other information:

Kia Carens RP (2013-2018) Service Manual: Purge Control Solenoid Valve (PCSV) Specifications

Specification Item Specification Coil Resistance (Ω) 22.0 ~ 26.0 [20°C(68°F)] ...

Kia Carens RP (2013-2018) Service Manual: Oil level sensor Repair procedures

Remove and Installation When the oil sensor signal fault occurs, refer to the DTC guide. 1. Drain the engine oil. 2. Remove the oil level sensor (A) after disconnecting the oil level sensor connector (B). ...