Golf GTI L4-2.0L (ABA) (1997)
Fuel Pressure Regulator: Testing and Inspection
NOTE:
-
The Fuel Pressure Regulator Controls The Fuel Pressure Dependent Upon Intake Manifold Pressure.
Special Tools, Testers And Auxiliary Items
-
VAG 1318 Pressure Tester
-
VAG 1318/10 Adapter
-
VAG 1318/11 Adapter
-
VAG 1318/16 Adapter
Test Conditions
-
Fuel pump delivery rate OK.
Test Sequence
WARNING:
-
DO NOT smoke or work near heaters or other fire hazards when working on fuel system.
-
The fuel system is pressurized! Before loosening hose connections or opening the test connection, wrap a cloth around the connection. Then
release pressure by slowly disconnecting the hose/fittings.
-
Disconnect fuel supply line -1- from fuel rail -2- and connect using adapter 1318/10 to pressure tester VAG 1318.
-
Connect pressure tester VAG 1318 to fuel rail -2- using adapter 1318/11 and 1318/16. Open pressure tester shut-off valve, handle in direction of
flow (arrow).
-
Start engine and run at idle speed.
-
Check fuel pressure.
Specification: approx. 2.5 bar (36.3 psi)
-
Disconnect vacuum hose - 1- from connection -2-.
-
The fuel pressure must rise to approx. 3.0 bar (43 psi).
-
Switch ignition off
-
Check for leaks and residual pressure by watching pressure drop on gauge.
-
After 10 minutes there must be a residual pressure of at least 2 bar (29 psi).
If the residual pressure drops below 2 bar (29 psi):
-
Start engine and run at idle speed.