Volkswagen Passat 1995 Official Factory Repair Manual page 1962

Multiport fuel injection and ignition system
http://ebahn.bentleypublishers.com/vw/servlet/Display?action=Goto&type=repair&id=VW.B4.FU07.24.1
- Disconnect test port plug -1- from fuel rail and
connect pressure gauge VAG 1318 with adapter
VAG 1318/10 and hose VAG 1318/1 to fuel rail.
Fuel gauge valve must be closed, handle 90 to
direction of flow (arrow).
- Start engine and run at idle speed.
- Check fuel pressure.
Specification: approx. 2.5 bar (36 psi)
- Disconnect vacuum hose from intake manifold
upper section at fuel pressure regulator (arrow).
The fuel pressure must rise to approx. 3.0 bar (44
psi)
- Switch ignition off.
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