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 fuel flow if you listen to the injector rails underneath the intake manifold cover. The fuel pump should run for 2 seconds when the ignition switch is first turned ON (II). If the fuel pump does not make noise, check as follows:

1. Turn the ignition switch OFF.
2. Remove the driver's side second row seat (see SECOND ROW SEAT REMOVAL/INSTALLATION ).
3. Cut the carpet at the dotted line (A). Be careful not to cut the wire harness under the carpet.
   Fig 1: Cutting The Carpet At The Dotted Line

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4. Remove the access panel (A) from the floor, then disconnect the fuel pump 5P connector (B).
   Fig 2: Removing The Access Panel

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5. Connect PGM-FI main relay 7P connector terminals No. 4 and No. 5 with a jumper wire.
   Fig 3: Connecting PGM-FI Main Relay 7P Connector Terminals No. 4 & No. 5 With A Jumper Wire

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6. Turn the ignition switch ON (II).
7. 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 (G601). If the ground is OK, replace the fuel pump (see Fuel Filter Replacement  ).
   • If there is no voltage, check the main relay wire harness (see PGM-FI Main Relay Circuit Troubleshooting  ).
   Fig 4: Measuring Voltage Between The Fuel Pump 5P Connector Terminal No. 5 & Body Ground

   Courtesy of AMERICAN HONDA MOTOR CO., INC.