Hyundai Sonata: Description and Operation - Evaporative Emission Control System - Emission Control SystemHyundai Sonata: Description and Operation

Description

The Evaporative Emission Control System prevents fuel vapor stored in fuel tank from vaporizing into the atmosphere. When the fuel evaporates in the fuel tank, the vapor passes through vent hoses or tubes to a canister filled with charcoal.
The canister temporarily holds the vapor in the charcoal. The ECM will control the system in order to draw the gathered vapor into the combustion chambers during certain operating conditions. Engine manifold vacuum is used to draw the vapor into intake manifold.

    Schematic Diagrams
    Schematic Diagram Canister The Canister is filled with charcoal and absorbs evaporated fuel vapor from the fuel tank. The gathered fuel vapor in canister is drawn into the intake man ...

    See also:

    Transaxle Control Module (TCM). Repair procedures
    Replacement In the case of the vehicle equipped with immobilizer or button engine start system, perform "Key Teaching&quo ...

    Tilting the sunroof
    When the sunshade is closed If you push the sunroof control lever upward, the sunshade will slide all the way open then the sunroof glass will tilt. To stop the sunroof movement at any point, ...

    Heated Oxygen Sensor (HO2S). Repair procedures
    Inspection 1. Turn the ignition switch OFF. 2. Disconnect the HO2S connector. 3. Measure resistance between th ...