The canister is filled with activated charcoal and absorbs fuel vapor from the fuel tank. Fuel vapor accumulated in the tank is drawn into the intake manifold by the ECM/PCM when conditions are appropriate. PURGE CONTROL SOLENOID VALVE (PCSV) The purge control solenoid valve (PCSV) is installed in the passage connecting the canister and the intake manifold. It is a proportional-type solenoid valve and operates on a signal from the ECM/PCM. To draw in the vapor absorbed in the canister into the intake manifold, the ECM/PCM opens the PCSV; otherwise the passage remains closed. FUEL FILLER CAP The clamping system on the threaded fuel filler cap reduces the possibility of incorrect installation when closing the tank. When the fuel filler cap gasket and the filler pipe flange contact each other, the clamping locator produces a clicking sound, indicating that the cap is correctly installed.
?
Test yourself
A quick Hyundai Tucson quiz: every answer comes with an explanation and a link to the manual page.
