Passat V6-2.8L (ATQ) (2004)
Fuel Pressure Regulator: Testing and Inspection
Fuel Pressure, Pressure Regulator and Residual Pressure
Fuel pressure regulator and residual pressure, checking
Function
The fuel pressure regulator controls the fuel pressure as a function of the Manifold Absolute Pressure (MAP).
The specified value for this test is dependent on the working pressure of the Fuel Pump (FP). This is about 4.0 bar positive pressure.
Recommended special tools and equipment
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V.A.G 1318 Pressure gauge
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V.A.G 1318/7 Adapter
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V.A.G 1318/10 Adapter
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V.A.G 1318/13 Hose adapter
Test requirement
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Delivery quantity of Fuel Pump (FP) OK, Fuel Pump (FP), checking. See: Fuel Pump/Testing and Inspection/Fuel Pump, Checking/With
Manufacturer's Scan Tool
Test sequence
WARNING: Fuel system is under pressure! Before opening system, place rags around the connection point. Then release pressure by carefully
loosening connection.