Fuel Pressure: Testing and Inspection

WARNING: BEFORE REMOVING FUEL PRESSURE GAUGE, RELEASE FUEL PRESSURE.

NOTE: If out of specification as measured at step 6), check or replace pressure regulator and pressure regulator vacuum hose.

1. Release fuel pressure.
2. Connect connector to fuel pump.





3. Disconnect fuel delivery hoses from fuel filter, and connect fuel pressure gauge.
4. Start the engine.





5. Measure fuel pressure while disconnecting pressure regulator vacuum hose from collector chamber.

Fuel pressure:
284 - 314 kPa (2.9 - 3.2 kg/sq.cm, 41 - 46 psi)





6. After connecting pressure regulator vacuum hose, measure fuel pressure.

Fuel pressure:
171 - 206 kPa (1.8 - 2.1 kg/sq.cm, 26 - 30 psi)