fuel pressure SUBARU LEGACY 1999 Service Repair Manual

8. Fuel Temperature Sensor
A: REMOVAL
1) Release fuel pressure.
2) Remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Disconnect fuel delivery hose (A), return hose
(B) and jet pump hose (C).
B2M0954E
5) Remove nuts which install fuel pump assembly
onto fuel tank.
B2M0955
6) Take off fuel pump assembly from fuel tank.
B2M0956
7) Disconnect connector from fuel pump bracket.
S2M0145
8) Remove main fuel level sensor from fuel pump
assembly.
NOTE:
Fuel temperature sensor is a unit with fuel pump.
If replacing it, replace as a fuel pump.
S2M0855
11
[W8A0]2-1SERVICE PROCEDURE
8. Fuel Temperature Sensor

B: INSTALLATION
CAUTION:
Leave fuel filler cap open when tightening nuts,
to prevent fuel from flowing out through fuel
delivery and return pipes. Close fuel filler cap
after tightening nuts.
Installation is in the reverse order of removal. Do
the following:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or for-
eign particles before installation.
(3) Tighten nuts in alphabetical sequence shown
in figure to specified torque.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M0955C
9. Fuel Tank Pressure Sensor
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel tank.
S2M0169A
12
2-1[W8B0]SERVICE PROCEDURE
9. Fuel Tank Pressure Sensor

B: INSTALLATION
CAUTION:
Leave fuel filler cap open when tightening nuts,
to prevent fuel from flowing out through fuel
delivery and return pipes. Close fuel filler cap
after tightening nuts.
Installation is in the reverse order of removal. Do
the following:
(1) Always use new gaskets.
(2) Ensure sealing portion is free from fuel or for-
eign particles before installation.
(3) Tighten nuts in alphabetical sequence shown
in figure to specified torque.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M0955C
9. Fuel Tank Pressure Sensor
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel tank.
S2M0169A
12
2-1[W8B0]SERVICE PROCEDURE
9. Fuel Tank Pressure Sensor

6) Remove protector cover.
B2M1773
7) Disconnect connector from fuel tank pressure
sensor.
B2M2792
8) Release clips which hold fuel pipes onto fuel
tank.
B2M1775A
9) Move two fuel pipes to upper side, and remove
bolt which install fuel tank pressure sensor to
bracket.
B2M1776
10) Move clip, and disconnect pressure hose from
fuel tank.
B2M2793
11) Disconnect pressure hose from fuel tank pres-
sure sensor.
B2M1779
12) Installation is in the reverse order of removal.
Tightening torque:
7.35
±1.96 N´m (0.75±0.20 kg-m, 5.4±1.4
ft-lb)
B2M1776
13
[W9A0]2-1SERVICE PROCEDURE
9. Fuel Tank Pressure Sensor

4) Connect connector to vent control solenoid
valve.
B2M0964
5) Connect two hoses to air filter.
B2M1888A
6) Install canister.
B2M1780
7) Lower the vehicle.
8) Connect battery ground cable.
B2M1723
12. Main Fuel Level Sensor
A: REMOVAL
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Disconnect fuel delivery hose (A), return hose
(B) and jet pump hose (C).
B2M0954E
17
[W12A0]2-1SERVICE PROCEDURE
12. Main Fuel Level Sensor

4) Connect connector to vent control solenoid
valve.
B2M0964
5) Connect two hoses to air filter.
B2M1888A
6) Install canister.
B2M1780
7) Lower the vehicle.
8) Connect battery ground cable.
B2M1723
12. Main Fuel Level Sensor
A: REMOVAL
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Disconnect fuel delivery hose (A), return hose
(B) and jet pump hose (C).
B2M0954E
17
[W12A0]2-1SERVICE PROCEDURE
12. Main Fuel Level Sensor

14. Sub Fuel Level Sensor
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filler cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Remove service hole cover.
G2M0863
5) Disconnect connector from fuel sub meter, and
disconnect jet pump hose.
S2M0151
6) Remove bolts which install sub fuel level sensor
on fuel tank.
S2M0152
7) Remove sub fuel level sensor.
S2M0153
8) Installation is in the reverse order of removal.
Tightening torque:
T: 4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1
ft-lb)
S2M0152A
20
2-1[W14A0]SERVICE PROCEDURE
14. Sub Fuel Level Sensor

15. Vent Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel tank.
S2M0169A
6) Remove protector cover.
B2M1773
7) Move clips, and disconnect hoses from vent
valve.
B2M1792
8) Remove nuts which install vent valve on fuel
tank.
B2M1793
21
[W15A0]2-1SERVICE PROCEDURE
15. Vent Valve

9) Installation is in the reverse order of removal.
CAUTION:
Replace rubber seat with a new one.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1794A
16. Shut Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel filler pipe.
B2M1756
22
2-1[W16A0]SERVICE PROCEDURE
16. Shut Valve

9) Installation is in the reverse order of removal.
CAUTION:
Replace rubber seat with a new one.
Tightening torque:
4.4
±1.5 N´m (0.45±0.15 kg-m, 3.3±1.1 ft-lb)
B2M1794A
16. Shut Valve
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Open fuel flap lid, and remove fuel filer cap.
B2M1746
3) Disconnect battery ground cable.
B2M1723
4) Drain fuel from fuel tank.
G2M0345
5) Remove fuel filler pipe.
B2M1756
22
2-1[W16A0]SERVICE PROCEDURE
16. Shut Valve