Fuel Pressure: Inspection
CAUTION:
- Before removing the fuel pressure gauge, release the fuel pressure.
- Be careful not to spill fuel.
- Catch the fuel from hoses using a container or cloth.
- Remove the collector cover.
- Release the fuel pressure. < Refer to RELEASING OF FUEL PRESSURE , PROCEDURE, Fuel. >
- Open the fuel filler lid and remove the fuel filler cap.
- Disconnect the fuel delivery hose and connect the fuel pressure gauge.
- Disconnect the fuel delivery hose using the ST.
ST 42099AE000 QUICK CONNECTOR RELEASE
- Connect the fuel pressure gauge with ST1 and ST2.
NOTE:ST1 is a SUBARU genuine part.
ST1 42075AG690 FUEL HOSE
ST2 18471AA000 FUEL PIPE ADAPTER - Disconnect the fuel delivery hose using the ST.
- Start the engine.
- Check the fuel pressure after warming up the engine.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.
- Check or replace the fuel pump and fuel delivery line if the fuel pressure is out of the standard.
Fuel pressure:
Standard
340 - 400 kPa (3.5 - 4.1 kgf/cm 2 , 49.3 - 58 psi)