Fuel Pump Flow
WARNING: This page is about a different car, the 1996 Saab 9000. However, it is still accessible from the selected car via links, so may be relevant.
- Turn ignition off. Disconnect fuel return line at pressure regulator. Connect a section of test hose to return line at pressure regulator. Place other end of test hose in 2-quart (approximate) graduated container.
- Activate fuel pump by turning ignition on. Run fuel pump for 30 seconds. Measure volume of fuel flow and fuel pressure drop. Minimum acceptable volume is 1.9 pts. (0.9L); maximum allowed fuel pressure drop is 2.8 psi (0.2 kg/cm2 ). If fuel volume or pressure drop does not meet specification, replace fuel pressure regulator.