Volkswagen Workshop Manuals
Eos (1F7) V6-3.2L (BUB) (2008)
Engine, Cooling and Exhaust > Engine > Tune-up and Engine Performance Checks > Fuel Pressure > System Information > System Diagnosis > Fuel Pump Electrical, Testing > Page 2251
Connect an assisting hose - arrow - on to the Fuel pressure test set (high pressure) and hold it into a measuring container.
Open the shut-off valve of pressure gauge. The lever points in direction of flow.
Generate pressure in the fuel system by pressing the remote control switch and slowly closing the pressure gauge shut-off valve.
‹› Specification: 4 bar positive pressure.
From this point on do not move position of shut-off valve.
Empty the measuring container.
Press switch on remote control for 15 seconds.
Compare quantity of fuel delivered with minimum delivery rate in the diagram (cm³/15s).
‹› Voltage at the fuel pump with engine stopped and fuel pump running is approx. 2 volts less than battery voltage.
If minimum delivery quantity is not obtained, the following malfunctions may be present:
‹› Fuel lines pinched.
‹› Fuel filter clogged.
‹› Fuel pump faulty.
Assembly is performed in reverse order of removal.
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