Hyundai Elantra MD/UD: Emission Control System > General Information > Description and Operation
Description
Emissions Control System consists of three major systems.
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The Crankcase Emission Control System prevents blow-by gas from
releasing into the atmosphere. This system recycles gas back into the
intake manifold (Closed Crankcase Ventilation Type).
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The Evaporative Emission Control System prevents evaporative gas
from releasing into the atmosphere. This system burns gas at appropriate
engine operating condition after gathering it in the canister.
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The Exhaust Emission Control System converts the three pollutants
[hydrocarbons (HC), carbon monoxide (CO), and oxides of nitrogen (NOx)]
into harmless substances by using the 3-way catalytic converter.
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