Fuel Pressure Test

Special Tools Required 

• Fuel Pressure Gauge 07406-004000B
• Fuel Pressure Gauge Attachment Set 07AAJ-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: Identifying Fuel Pressure Gauge Set

   Courtesy of AMERICAN HONDA MOTOR CO., INC.
3. Reinstall the air cleaner (A) (see AIR CLEANER REMOVAL/INSTALLATION ).
4. Install PGM-FI main relay 2.
5. Start the engine, and let it idle.
   • If the engine starts, go to step  7.
   • If the engine does not start, go to step 6.
6. 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 7.
   • If the pump does not run, do the fuel pump circuit troubleshooting (see FUEL PUMP CIRCUIT TROUBLESHOOTING ).
7. Read the fuel pressure gauge. The pressure should be 260-310 kPa (2.7-3.2 kgf/cm² , 38-46 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.