Volkswagen Passat 1995 Official Factory Repair Manual page 1335

Components of engine, checking
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- Wait until pressure has dropped, and
then switch off ignition.
Simultaneously close shut-off valve
of pressure gauge (lever
perpendicular to direction of flow -
arrow-).
- Observe pressure drop on pressure
gauge.
If pressure does drop again:
- Test check-valve of Fuel Pump (FP)
Page 20-15 , Fuel Pump (FP),
checking.
If pressure does not drop:
- Open stop valve of pressure gauge
(lever in direction of flow -arrow-).
- Start engine and let run at idle.
- Wait until pressure has dropped, and
then switch off ignition.
Simultaneously pinch return hose
tightly together.
If pressure does not drop:
- Replace fuel pressure regulator
Page 24-17 , item 3 .
- Erase DTC memory of Engine
Control Module (ECM)
26 , Diagnostic mode 4: Reset/erase
diagnostic data.
Page 58 of 62
24-82
Page ST-
6/12/2004