Fuel Pressure: Test

WARNING:

Flammable - Keep Fire Away

NOTE:

Refer to the Fuel and Emissions Systems Service Precautions before disconnecting the fuel line.
Fuel may cause flammable gas leaks and may result in fire. Keep sparks, flame and cigarettes away.

Fuel Pressure - Relieve

Fuel Line - Disconnect

Courtesy of HONDA, U.S.A., INC.

1. Remove the quick-connect fitting cover (A)

2. Check the fuel quick-connect fitting (B) for dirt, and clean it if needed.

3. Place a rag or shop towel over the quick-connect fitting, then disconnect the quick-connect fitting

Fuel Pressure - Test

Courtesy of HONDA, U.S.A., INC.

NOTE: If you were referred to this procedure from a troubleshooting procedure, test the fuel pressure under the same conditions the malfunction occurred (engine speed, load, throttle position, etc.).

1. Attach the fuel pressure gauge set. Check for leaks with the gauge set attached.

2. Enter the maintenance mode and start the engine

Then let it idle.

If the engine starts, go to step 3 and read the fuel pressure gauge.
If the pump does not run, do the fuel pump circuit troubleshooting .

3. Read the fuel pressure gauge. The pressure should be:

320 - 370 kPa (3.26 - 3.77 kgf/cm2, 46.4 - 53.7 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.