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: Height Adjust Repair procedures

Replacement 1. Remove the front seat belt upper anchor. (Refer to Front Seat Belt - "Front Seat Belt Pretensioner") 2. After loosening the mounting bolts, then remove the height adjust (A). ...

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

Removal 1. Remove the air cleaner assembly and air duct. (Refer to Engine Mechanical System - "Air cleaner") 2. Remove the battery and battery tray. (Refer to Engine Electrical System - "Battery") ...