Fuel Pressure Test: Test

Fuel Pressure - Test
1. Disconnect the quick-connect fitting. Attach the fuel pressure gauge set and the fuel pressure gauge.
2. Start the engine, and let it idle.
  - If the engine starts, go to step read the fuel pressure gauge.
  - If the engine does not start, go to next step.
3. 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 next step.
  - If the pump does not run, do the fuel pump circuit troubleshooting.
4. Read the fuel pressure gauge. The pressure should be 320-370 kPa (3.3-3.8 kgf/cm ² , 47-54 psi) .
  - If the pressure is OK, the test is complete.
  - If the pressure is out of specification, replace the fuel pressure regulator and the fuel filter, then recheck the fuel pressure.
    
    Fig 1: Attaching Fuel Pressure Gauge Set And Fuel Pressure Gauge
    Courtesy of AMERICAN HONDA MOTOR CO., INC.