Fuel Pressure Test
Special Tools Required
Image Description/Tool Number
15778381.png GAUGE, FUEL PR. 100PSI 07406-004000C
16736254.png Fuel Pressure Gauge Attachmeent Set 07AAJ-S6MA150 or 07AAJ-S6MA151

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.

2. Fuel Hose Cover - Remove


3. Fuel Line - Disconnect



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.

4. Fuel Pressure - Test


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.
Start the engine, and 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: 390?440 kPa (3.98?4.49 kgf/cm2, 56.6?63.8 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.