Fuel Pump: Testing and Inspection
Checking All PressuresConnect pressure gauge 5011
Fig. 4 Fuel pressure gauge connections.:
Turn off the ignition.
Connect the gauge between the control pressure regulator and fuel distributor.
E/F: use pressure gauge 5011, hose 5116 and adapter 5032.
Turbo: use pressure gauge 5011 and adapters 5228 and 5229.
Turn on the ignition to start the fuel pump
Check the line pressure
Turn the gauge cock on 5011 to position 1 (towards the fuel distributor).
Record the pressure when stable. The line pressure must be:
E/F: 450-530 kPa (65-77 psi)
Turbo: 520-580 kPa (75-84 psi)
Check the control pressure (cold control pressure regulator)
Turn the gauge cock on 5011 to position 2 (at right angles to the hoses).
The control pressure regulator should be at the temperature of the surroundings.
Too low: test with a new control pressure regulator.