Fuel Pump: Testing and Inspection

Requirement:

Fuel filter and electrical supply in order.

1. Relieve pressure in fuel tank by opening tank cap.
2. Connect Porsche System Tester 2.
3. Remove the complete air cleaner assembly.
4. Undo the fuel return line (width across flats 17 mm) in the engine compartment (left). It is essential to counter at the same time (width across flats 17 mm). Collect residual fuel. Observe the safety regulations.







5. Connect fuel hose (shop-made, approx. 1.5 m long) to the connection piece and hold in a measuring device.







6. Actuate fuel pump with the Porsche System.
Tester 2 and allow fuel to flow for 30 seconds into a measuring container.
Quantity supplied must be at least 850 cu.cm./30 s, i.e. after 30 seconds at least 850 cu.cm. fuel must be present in the measuring container.