FB6 - Fuel Pump Flow Volume

WARNING: Fuel in the fuel system remains under high pressure even when the engine is not running. To avoid injury or fire, release the fuel pressure from the fuel system before disconnecting any fuel line.

To release fuel pressure, refer to Service and Repair/Fuel System Pressure Relief Procedure.

Fuel Pressure Set-up:

^ Connect the Rotunda Fuel Pressure Tester 014-00748, or equivalent, with EFI Test Adapter D87C-9974-A between the fuel filter and fuel rail, with the main valve closed and the drain valve opened.

^ Place the bypass hose (yellow) in a measuring container inside an empty overflow container.

Fuel Pump Test Connector:

^ Jump the fuel pump test terminal to ground.

^ Key "ON".

^ Collect fuel in the measuring vessel for 10 seconds.

^ Is the amount of fuel collected at least 167cc (5.5 ounces)?

YES -- Go to FB7. FB7 - Fuel Pump Valve Leak-down

NO -- Service the fuel pump inlet screen, and rerun this test. If flow is still not within specified limits, replace the fuel and rerun the Fuel Pressure Test.