Hyundai Sonata LF: Evaporative Emission Control System / Description and Operation

Hyundai Sonata LF 2014-2019 Service Manual / Emission Control System / Evaporative Emission Control System / 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.

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 manifold by the ECM/PCM when appropriate conditions are set...

Other information:

Hyundai Sonata LF 2014-2019 Service Manual: Starter Relay Repair procedures

Inspection 1. Turn ignition switch OFF and disconnect the negative (-) battery cable. 2. Remove the fuse box cover. 3. Remove the starter relay (A). 4. Using an ohmmeter, check that there is continuity between each terminal. TerminalContinuity30 - 87NO85 - 86YES 5...

Hyundai Sonata LF 2014-2019 Service Manual: Power Seat Motor Repair procedures