5 - Electric Fuel Pump Pressure

5. Electric Fuel Pump Pressure





Purpose:
To determine if there is sufficient fuel pressure for starting.





Recommended Procedure:
First verify that there is fuel in the tank and battery voltage going to the fuel pump using a digital multimeter connected between the two circuits going to the pump. Battery voltage will be present for approximately 20 seconds when the ignition key is turned ON. If no voltage is present, go to Pinpoint Test FK. FK - Fuel Pump Monitor/Control





Remove the doghouse cover and remove the 1/8-inch pipe plug from the top rear of left head. Install Gauge (0-160 psi) Bar 014-00761 or equivalent. Measure pressure in crank or run. If pressure measures below specification (30-80 psi), perform test steps 8a-d in Performance Diagnostic Procedures.