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EMISSION CONTROL SYSTEMS - General Information
GENERAL INFORMATION There are three sources of vehicle exhaust emissions generated: the exhaust gases resulting from combustion, the blow-by gases generated within the crankcase, and the evaporative emissions generated from the fuel tank and other components of the fuel line. The emissions-control system, which is designed to control the discharge of these exhaust gases into the atmosphere, is composed of the following system components. (1) Exhaust emission control system (2) Crankcase emission control system (3) Evaporative emission control system
R258A’
The exhaust emissions-control system reduces the amount of carbon monoxide, hydro carbon and oxides of nitrogen in the exhaust gases by adding the exhaust gas recirculation device and the catalytic converter to fundamental improvements such as improvement of the combustion chamber and the camshaft, as well as other improvements to the engine such as feedback control of the air/fuel ratio by the electronically controlled fuel injection system. The crankcase emissions-control system is a closed type so that blow-by gases are not discharged out to the atmosphere. The evaporative emissions-control system is the canister type; vapors that are generated within the fuel tank are introduced into the intake manifold and are combusted so that they are not emitted out to the atmosphere.
Non-Turbo for Federal
: Canister $2:) :.: 0 Air
cleaner \
solenoid valve
Catalytic converter