Except California Emissions
Crankcase Emission Control System
The crankcase emission control system prevents blow-by gases from escaping into the atmosphere.
The blow-by gases in the crankcase are routed, through various components, back into the intake manifold for combustion.
Evaporative Emission Control System
It consists of various components, which collect and lead the fuel vapors to the intake manifold for combustion.
The evaporative control system prevents the escape of fuel vapors from the fuel tank and fuel injection into the atmosphere.
Exhaust Emission Control System
The exhaust emission control system consists of a three-way catalytic converter.
This system reduces the emission of Hydrocarbons (HC), Carbon Monoxide (CO) and Oxides of Nitrogen (NOx).
Electronic Control System (see Computers And Control Systems)
The electronic control system consists of the Electronic Control Module (ECM), and various sensors and output devices.
This system controls engine operation (i.e. A/F mixture and ignition timing) to reduce pollutants while maintaining optimum driveability and reducing fuel consumption.