The thing that has two big and one skinny hoses connected to it is the fuel pressure damper. One big hose feeds into the intake of the fuel pump, the other is coming from the fuel tank. The purpose of the skinny hose is to give fuel that might leak through a defective accumulator diaphram someplace to go, i.e., into the low pressure fuel supply. If you disconnect the skinny hose, fuel will run out of the damper until your tank is empty or you clamp/plug it. To test your accumulator, disconnect the skinny hose from the accumulator and plug or clamp the hose. Connect another hose to the accumulator and put the other end of that hose into a container. Start the engine. If there is fuel coming out of the hose connected to the accumulator, replace the accumulator. DO ALL OF THIS OUTSIDE WITH A FIRE EXTINGUISHER HANDY. If your accumulator is ok, you have a harder-to-diagnose problem. Let us know.
I suggest that you post your questions directly to
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rather thanthrough carkb.com, since carkb.com is simply grabbing this newsgroupsposts. Also, get a service manual (currently available only on CD).E-Bay has them.