audi Workshop Repair Guides

Audi Workshop Service and Repair Manuals

Fuel Pump Delivery Quantity, Checking|Page 3117 > < Fuel Pump Delivery Quantity, Checking|Page 3115
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Fuel Pressure: Testing and Inspection
System Pressure, Fuel Pressure Regulator and Holding Pressure, Checking

Fuel System Pressure, Pressure Regulator And Holding Pressure, Checking

NOTE:  The fuel pressure regulator regulates the fuel pressure according to the intake manifold pressure. The pressure drop at the injectors remains
constant for each engine speed and load range.

Special tools and equipment required

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Pressure gauge V.A.G 1318

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Adapter set V.A.G 1318/17

-

Hose clamp pliers V.A.G 1921

Requirements

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Fuel pump relay OK

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Fuel pump OK; checking

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Fuel filter OK

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Battery voltage at least 12.7 V

Checking system pressure

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Briefly open fuel tank filler cap (to release pressure).

Fuel Pump Delivery Quantity, Checking|Page 3117 > < Fuel Pump Delivery Quantity, Checking|Page 3115