Kia Cee'd: 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. (Re ...

Heated Oxygen Sensor (HO2S) Specifications

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

Other information:

: Engine Oil Capacity and Specification - 2.0L EcoBoost™
Use oil that meets the defined specification and viscosity grade. If you do not use oil that meets the defined specification and viscosity grade, it could result in: Component damage that your vehicle warranty does not cover. Longer engine cranking periods. Increased emission levels. Reduc ...

Kia Cee'd JD Service Manual: A/C Pressure Transducer Repair procedures
Inspection 1. Measure the pressure of high pressure line by measuring voltage output between terminal “1” and “2”. 2. Inspect the voltage value whether it is sufficient to be regular value or not. ...