Fuel Pressure

Test conditions
Battery voltage 12.5 V
Fuel filter OK
Fuel tank at least 1/4 filled.
Fuel pressure regulator OK.
Ignition switched off.

Fuel Pressure
Specified value 3.5 to 6 bar

Fuel Pump Delivery Quantity
Compare quantity of fuel delivered with minimum delivery rate in the diagram (cm3/30 sec.)





Voltage at the fuel pump with engine stopped and fuel pump running is approx. 2 volts less than battery voltage