Y= Idle stabilizer valve bypass hose
U= Air flow meter
Z= Alternator
X= Reference mark sensor conector. (for VW test equiptment)
Y= Power steering pump
W= No idea.
A= ECU
B= Heater valve
C= Brake vacuum hose to booster
D Coolant purge line
F= Fuel inlet line. (I think)
L= Heater hose
H= Idle stabilizer valve
I= Fuel pressure regulator
N= Engine ground point
O= Fuel rail
P= Fuel injector conector
J= Oil separator
G= Oil separator vent hose to intake
K= No idea. (its been too long since I had my vanagon)