Volkswagen Passat 1995 Official Factory Repair Manual page 2038

EVAP canister system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU08.20.2
Fuel tank ventilation, checking (vehicles
without Leak Detection Pump)
Recommended special tools and equipment
V.A.G 1368 Vacuum tester
V.A.G1390 hand vacuum pump
Test requirement
Ignition switched off
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12/6/2004