Forester AWD F4-2.5L DOHC (1998)
Fuel Pressure: Testing and Inspection
MEASUREMENT OF FUEL PRESSURE
WARNING: Before removing fuel pressure gauge, release fuel pressure.
NOTE: If out of specification, check or replace pressure regulator and pressure regulator vacuum hose.
1) Release fuel pressure.
2) Remove fuel filler cap.
3) Disconnect fuel delivery hoses from fuel filter, and connect fuel pressure gauge.
4) Connect connector to fuel pump relay.
5) Start the engine.
6) Measure fuel pressure while disconnecting pressure regulator vacuum hose from collector chamber.
Fuel pressure: 235 - 265 kPa (2.4 - 2.7 kg/cm2, 34 - 38 psi)
7) After connecting pressure regulator vacuum hose, measure fuel pressure.