Fuel Pressure: Testing and Inspection
Fuel PressureINSPECTION
WARNING: Before removing the fuel pressure gauge, release the fuel pressure.
NOTE: If out of specification, check or replace the pressure regulator and pressure regulator vacuum hose.
1) Release the fuel pressure.
2) Open the fuel flap lid, and remove the fuel filler cap.
3) Disconnect the fuel delivery hoses from fuel filter, and connect the fuel pressure gauge.
4) Connect the connector of fuel pump relay.
5) Start the engine.
6) Measure fuel pressure while disconnecting the pressure regulator vacuum hose from intake manifold.
Fuel pressure:
Standard: 284 - 314 kPa (2.9 - 3.2 kgf/cm2, 41 - 46 psi)
7) After connecting the pressure regulator vacuum hose, measure fuel pressure.
Fuel pressure:
Standard: 230 - 260 kPa (2.35 - 2.65 kgf/cm2, 33 - 38 psi)
NOTE: The fuel pressure gauge registers 10 to 20 kPa (0.1 to 0.2 kgf/cm2, 1 to 3 psi) higher than standard values during high-altitude operations.