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 pressure gauge.
   Fig 1: Attaching Fuel Pressure Gauge Set And 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), or the engine start/stop button is pressed to select the ON mode.
   • If the pump runs, go to step 5.
   • If the pump does not run, check for DTCs, then do the appropriate DTC troubleshooting procedure.
5. Read the fuel pressure gauge.

   Fuel pressure should be: 

   380-430 kPa (3.9-4.4 kgf/cm ²  , 55-63 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.