Canister: The canister is filled with activated charcoal and absorbs evaporated fuel vapor from the fuel tank. The fuel vapor collected in the canister is drawn into the intake manifold by the ECM/PCM when the appropriate conditions are met. Purge Control Solenoid Valve (PCSV): The PCSV is installed in the passage connecting the canister to the intake manifold. It is a duty-cycle type solenoid valve controlled by a signal from the ECM/PCM. To draw the absorbed vapor into the intake manifold, the ECM/PCM opens the PCSV, otherwise the passage remains closed. Fuel Tank Cap: The ratchet tightening device on the threaded fuel tank cap reduces the chance of improper installation when sealing the filler neck. When the gasket on the fuel tank cap and the filler neck flange make contact, the ratchet produces an audible click, indicating that the seal is installed.
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Test yourself
A quick Hyundai Kona quiz: every answer comes with an explanation and a link to the manual page.
