subaru Workshop Repair Guides

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Fuel Pressure|Specifications|Page 2025 > < Fuel Pressure|Specifications
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Fuel Pressure: Testing and Inspection

PRECAUTIONS 

WARNING: 
^

PLACE "NO SMOKING" SIGNS NEAR THE WORKING AREA.

^

DISCONNECT GROUND TERMINAL FROM BATTERY.

^

BE CAREFUL NOT TO SPILL FUEL ON THE FLOOR.

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) Open fuel flap lid, and remove fuel filler cap.

3) Disconnect fuel delivery hoses from fuel filter, and connect fuel pressure gauge.

4) Connect connector of fuel pump relay.
5) Start the engine. 

Fuel Pressure|Specifications|Page 2025 > < Fuel Pressure|Specifications