Kia Cee'd: Exhaust Emission Control System / Catalytic Converter Description and operation

The catalytic converter of the gasoline engine is a three way catalyst. It oxidizes carbon monoxide and hydrocarbons (HC), and separates oxygen from the oxides of nitrogen (NOx).

Description and operation

Description Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components. Modifications to the combust ...

CVVT (Continuously Variable Valve Timing) System Description and operation

Description Continuous Variable Valve Timing (CVVT) system advances or retards the valve timing of the intake and exhaust valve in accordance with the ECM control signal which is ...

Other information:

Kia Cee'd JD Service Manual: Injector Description and operation
Description The GDI injector is similar to a standard injector, but sprays fuel at a much higher pressure directly into the combustion chamber and has a swirl disc to get the fuel swirling as it exits the nozzle. This aids in atomization of the fuel.The ECM controls both the ...

Kia Cee'd JD Service Manual: Photo Sensor Repair procedures
Inspection 1. Turn the ignition switch ON. 2. Connect the GDS. 3. Emit intensive light toward the photo sensor using a lamp, and check the output voltage change. 4. The ...