Emission Control Systems: Description and Operation

EXHAUST EMISSION CONTROL SYSTEM
Exhaust emissions (CO, HC, NOx) are controlled by a combination of engine modifications and the addition of special control components.
This system is to modify to the combustion chamber, intake manifold, camshaft and ignition system to form the basic control system.
These systems have been integrated into a highly effective system which controls exhaust emissions while maintaining good driveability and fuel economy.