Hyundai Elantra AD Quiz
Emission Control System

Description and Operation

In this manual: Emission Control System
General Information — 9Engine Mechanical System — 84Engine Electrical System — 60Emission Control System — 24Engine Control System/Fuel System — 90Automatic Transmission — 92Drive Shaft and Axle — 20Suspension System — 31Steering — 20Restraints — 50Brake System — 63Body (Interior and Exterior) — 214Body Electrical System — 221Heating, Ventilation, and Air Conditioning — 71
~1min read

Description

The emission control system consists of three main systems.
  • The crankcase emission control system prevents crankcase gases from being released into the atmosphere. This system recirculates the gas back to the intake manifold (closed crankcase ventilation).
  • The evaporative emission control system prevents fuel vapor from being released into the atmosphere. This system burns the gas in the engine after collecting it in the canister.
  • The exhaust emission control system converts the three pollutants [hydrocarbons (HC), carbon monoxide (CO), and nitrogen oxides (NOx)] into harmless substances using a 3-way catalytic converter.

Test yourself

A quick Hyundai Elantra AD quiz: every answer comes with an explanation and a link to the manual page.