The electric fuel pump on your Honda is located inside the fuel tank. Most models provide an access door underneath the rear seat cushion. This guide is based on a Honda Civic, which is similar to other models. If your particular model does not provide an access door, you will have to lower the fuel tank to gain access to the fuel pump.
Unplug the fuel pump relay located behind the glove box or under the dashboard.
Start the engine and let it stall.
Plug the fuel relay.
Remove the fuel filler cap.
Remove the rear cushion. On some models you may have to remove a cross bar from the floor.
Unscrew the access door from the floor using a Phillips screwdriver.
Unplug the fuel pump electrical connector on top of the fuel tank.
Disconnect the fuel lines quick-connect fittings form the fuel tank by pressing the lock tabs and pulling the plastic connector form the fitting.
Twist the fuel tank unit locknut free using Honda spanner wrench 07AAA-S0XA100 or similar tool (see the Tip section and Resources).
Lift the locknut from the tank and lift the fuel pump/sending unit.
Discard the base gasket and O-ring.
Remove the old fuel pump from the assembly.
Mount the new fuel pump in the pump/sending unit assembly.
Install the fuel pump/sending assembly in the tank and lock the assembly locknut using a new gasket and O-ring. Make sure the marks on the pump assembly align with the marks on the fuel tank.
Connect the fuel lines.
Plug the fuel pump electrical connector.
Screw in the access door.
Mount the cross bar if your particular Honda model is equipped with it.
Re-Install the rear seat.
Tighten the fuel filler cap.
