Fuel Pressure Test

Special Tools Required 

• Fuel pressure gauge 07406-004000B
• Fuel pressure gauge attachment set 07 AAJ-S6MA150

1. Relieve the fuel pressure (see FUEL PRESSURE RELIEVING  ).
2. Disconnect the quick-connect fitting. Attach the fuel pressure gauge set and the fuel gauge.
   Fig 1: Attaching Fuel Pressure Gauge Set & Fuel Pressure Gauge

   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 filler port with the fuel fill cap removed.

   The fuel pump should run for 2 seconds when the ignition switch is first turned to ON (II).

   • If the pump runs, go to step  5.
   • If the pump does not run, do FUEL PUMP CIRCUIT TROUBLESHOOTING  .
5. Read the fuel pressure gauge. The pressure should be 320-370 kPa (3.3-3.8 kgf/cm² , 47-54 psi).
   • If the pressure is OK, the test is complete.
   • If the pressure is out of specification, replace the fuel pressure regulator (see FUEL PRESSURE REGULATOR REPLACEMENT  ) and the fuel filter (see FUEL FILTER REPLACEMENT  ), then recheck the fuel pressure.