Fuel Pressure Test

Special Tools Required 

• Fuel pressure gauge 07406-004000A
• Fuel pressure gauge set 07AAJ-S6MA150

1. Relieve the fuel pressure (see FUEL PRESSURE RELIEVING  ).
2. Disconnect the quick-connect fitting (A). Attach the fuel pressure gauge set and the fuel pressure gauge.
   Fig 1: Disconnecting Quick-Connect Fitting (2003-04 Models)

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
   Fig 2: Disconnecting Quick-Connect Fitting (2005-06 Models)

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Start the engine, and let it idle.
   • If the engine starts, go to step  5.
   • If the engine does not start, go to step 4.
4. Check to see if the fuel pump is running: listen to the fuel fill port with the fuel cap removed. The fuel pump should run for 2 seconds when the ignition switch is first turned on.
   • If the pump runs, go to step 5.
   • If the pump does not run, do the fuel pump circuit troubleshooting (see FUEL PUMP CIRCUIT TROUBLESHOOTING  ).
5. Read the pressure gauge. The pressure should be 390-440 kPa (4.0-4.5 kg/cm² , 57-64 psi).
   • If the pressure is OK and the engine is running, the test is complete. If the engine is not running, repair the cause, then continue this test.
   • If the pressure is out of specification and the fuel lines are OK, replace the pressure regulator (see FUEL PRESSURE REGULATOR REPLACEMENT  ).