Golf GTI V6-2792cc 2.8L DOHC (AAA) SFI (1998)
Fuel Pressure: Testing and Inspection
Fuel Pressure Regulator and Residual Pressure, Checking:
The fuel pressure regulator controls the fuel pressure dependent upon intake manifold pressure.
Special tools, testers and auxiliary items
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VAG 1318 pressure tester
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VAG 1318/10 adapter
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VAG 1318/11 adapter
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VAG 1318/16 adapter
Test conditions:
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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/fitting
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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.
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Fuel gauge valve must be closed, handle 90° to direction of flow (arrow).
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Start engine and run at idle speed.
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Check fuel pressure.
Specification: approx. 2.5 bar (36 psi).