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:

Kia Cee'd JD Service Manual: Schematic diagrams
Circuit Diagram - ESP (1) Circuit Diagram - ESP (2) Circuit Diagram - ESP (3) Circuit Diagram - ESP (4) ESP Connector Input/ Out put   Wire No. Designation Current ...

Kia Cee'd JD Owners Manual: Hitches
It's important to have the correct hitch equipment. Crosswinds, large trucks going by, and rough roads are a few reasons why you’ll need the right hitch. Here are some rules to follow: Do you have to make any holes in the body of your vehicle when you install a trailer hitch? I ...