Hyundai Santa Fe: Evaporative Emission Control System / Description and operation

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 the canister filled with charcoal and the canister temporarily holds the vapor in the charcoal.

If ECM determines to draw the gathered vapor into the combustion chambers during certain operating conditions, it will use vacuum in intake manifold to move it.

Evaporative Emission Control System

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Schematic diagrams

Schematic Diagram Canister Canister is filled with charcoal and absorbs evaporated vapor in fuel tank. The gathered fuel vapor in canister is drawn into the intake manifold by the ECM/PCM when appropriate conditions are set...

Other information:

Hyundai Santa Fe (TM) 2019-2025 Owner's Manual: System malfunction and precautions

System malfunction After starting the engine, a beep will sound when the gear is shifted to R (Reverse) to indicate the system is operating normally. However, if one or more of the following occurs, first check whether the ultrasonic sensor is damaged or blocked with foreign material...

Hyundai Santa Fe (TM) 2019-2025 Service Manual: Radiator Grill. Components and components location

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