Fuel Pump: Testing and Inspection

1. Place ignition switch in the off position, then disconnect main relay electrical connector at left side of cowl.
2. Connect jumper wire between black/yellow and yellow/black wire terminals of main relay connector.
3. Relieve fuel pressure, refer to ``Relieving System Fuel Pressure'' procedure.
4. Disconnect fuel return pipe from regulator and place end of hose in suitable container.
5. Turn ignition switch on for 10 seconds, then measure amount of fuel collected in container. Fuel flow should be 7.8 oz. in 10 seconds at 12 volts.
6. If fuel flow is less than 7.8 oz. or there is no fuel flow, proceed as follows:
a. Check for clogged fuel filter.
b. Check for clogged fuel line.
c. Check for defective pressure regulator.
d. If defective fuel pump is suspected, proceed to step 7.
7. Ensure fuel pump actually runs and makes a noise when on. If fuel pump does not make a noise when on, proceed as follows:
a. Remove rear seat, then disconnect fuel pump electrical connector. Ensure ignition switch is off before disconnecting the electrical connector.
c. Check for battery voltage at black (-) and yellow/black (+) terminals of fuel pump electrical connector, with ignition switch in the On position.
d. If battery voltage is present, replace fuel pump. If no voltage is present, check main relay and wire harness.