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In limited quantities, fuel vapors located at the highest point in the tank pass through a gravity valve (which The activated charcoal in the canister stores these vapors like a sponge. When the oxygen sensor control is active when driving (engine warm), the EVAP canister purge regulator valve Intake manifold vacuum draws fresh air through the vent opening on the underside of the EVAP canister during The pressure retention valve prevents fuel vapors from being drawn from the tank when the solenoid valve is When no voltage is applied (e.g. wiring open circuit), the solenoid valve is closed. The EVAP canister will not The vacuum line from the throttle valve control module to the EVAP canister has an additional bypass which is Functional description of leak diagnosis The EVAP system (including the fuel tank) is equipped with a leak diagnosis. This diagnosis system detects This diagnosis is based on the pressure principle and should detect leaks with a circumference larger than 1 mm. During the diagnosis the Leak Detection Pump (LDP) -V144- creates a pressure of 30 mbar in the EVAP Observe safety precautions. See SAFETY PRECAUTIONS WHEN WORKING ON THE FUEL SUPPLY Observe rules for cleanliness. See RULES FOR CLEANLINESS . EVAP system components, servicing. See EVAP SYSTEM COMPONENTS, SERVICING . EVAP system, assembly overview. See EVAPORATIVE EMISSIONS (EVAP) SYSTEM, ASSEMBLY
2003 Volkswagen New Beetle GLS 1998-2004 ENGINE Fuel Supply - 2.0L (AEG, AVH, AZG, BDC, BEV & BGD)
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