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: CVVT & Camshaft 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 calculated by the engine speed and load. By controlling CVVT, the valve over-lap or under-lap ...

Kia Cee'd JD Service Manual: Cylinder Head Components and components location
Components   1. Cylinder head assembly 2. MLA 3. Retainer lock 4. Retainer 5. Valve stem seal 6. Valve spring 7. Valve spring seat 8. OCV (Oil Control Valve) 9. Exhaust valve 10. Intake valve 11. Cylinder head gasket ...