Hyundai Santa Cruz: Exhaust Emission Control System / 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 combustion chamber, intake manifold, camshaft and ignition system consist the basic control system.These items have been integrated into a highly effective system which controls exhaust emissions while maintaining good drivability and fuel economy.