volkswagen Workshop Repair Guides

Volkswagen Workshop Service and Repair Manuals

Fuel Distributor > < Tools - Gas Chek Kit for Checking Gasoline|Page 4216
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Fuel Accumulator: Description and Operation

Fig. 5  Fuel Accumulator

The fuel pressure accumulator, Fig. 5, performs three functions.

1.

It dampens the operating noise of the fuel supply pump.

2.

It ensures sufficient output to the injectors for starting, by delaying the rise in pressure within the supply circuit.

3.

It maintains pressure in the circuit after shutting off the engine in order to ease hot restarting procedures.

Fuel Distributor > < Tools - Gas Chek Kit for Checking Gasoline|Page 4216