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Power Strokes
6.4 Tech
LPFP pressure when running
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[QUOTE="mortal798, post: 231263, member: 789"] 11. Electric Fuel Pump Pressure Test Note: The fuel pump runs for approximately 30 seconds at initial ignition on and then the pressure decreases. Purpose: The purpose of this test is to verify there is sufficient fuel pressure for starting. Electric Fuel Pump Pressure Test • Verify there is fuel in the tank. • Check the fuel pump power and ground circuits. • Measure the fuel pressure using the Fuel Line Adapter 310-159 or equivalent. Note: If using a scan tool for the fuel pump pressure test, the scan tool value may vary by 10% on the 20.7 kPa (3 psi) specification. Instrument Specification Measurement 0-200 kPa (0-30 20.7-55.2 kPa psi) gauge (3-8 psi) [/QUOTE]
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