Fuel Pump Test

If you suspect a problem with the fuel pump, check that the fuel pump actually runs; when it is ON, you will hear some noise if you listen to the fuel fill port with the fuel fill cap removed. The fuel pump should run for 2 seconds when the ignition switch is first turned on. If the fuel pump does not make noise, check as follows:

1. Remove the trunk floor (see TRIM REMOVAL/INSTALLATION - TRUNK AREA ).
2. Remove the access panel from the floor.
3. Turn the ignition switch OFF, then disconnect the fuel pump 5P connector.
4. Connect the PGM-FI main relay 7P connector terminals No. 4 and No. 5 with a jumper wire.
   Fig 1: Connecting PGM-FI Main Relay 7P Connector Terminals No. 4 & No. 5 With Jumper Wire

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
5. Turn the ignition switch ON (II).
6. Check that battery voltage is available between the fuel pump 5P connector terminal No. 5 and body ground when the ignition switch is turned ON (II).
   • If battery voltage is available, check the fuel pump ground. If the ground is OK, replace the fuel pump (see Fuel Pump Replacement  ).
   • If there is no voltage, check the wire harness (see PGM-FI Main Relay Circuit Troubleshooting  ).
     Fig 2: Checking Battery Voltage Is Available Between Fuel Pump 5P Connector Terminal No. 5 & Body Ground

     Courtesy of AMERICAN HONDA MOTOR CO., INC.