Hyundai Veloster: Description and Operation

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.

Evaporative Emission Control System

...

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 m ...

See also:

Back-up Lamp Switch. Repair procedures
Inspection 1. Disconnect the back up lamp switch connector (A). 2. Check the continuity between no. 1 and 2 terminals of backup la ...

Schematic Diagrams
Circuit Diagram - ESC (1) Circuit Diagram - ESC (2) Circuit Diagram - ESC (3) Circuit Diagram - ESC (4) ESC connector input/output Connector Terminal ...

Input Speed Sensor 2 > Description and Operation
Description The input shaft speed sensor is important in that it detects the input shaft RPM and sends this information to the TCM. It provides important input information for electric contr ...