Subaru Legacy (2005 year). Manual - part 251

FU(H4DOTC)-29

FUEL INJECTION (FUEL SYSTEMS)

Fuel Injector

11.Fuel Injector

A: REMOVAL

1. RH SIDE

1) Release the fuel pressure.
<Ref. to FU(H4DOTC)-39, RELEASING OF FUEL
PRESSURE, PROCEDURE, Fuel.>
2) Open the fuel filler flap lid, and remove the fuel
filler cap.
3) Remove the collector cover.
4) Disconnect the ground cable from battery.

5) Remove the coolant filler tank. <Ref. to
CO(H4DOTC)-31, REMOVAL, Coolant Filler
Tank.>
6) Disconnect the connector from fuel injector.
7) Remove the screw and remove the fuel injector.

2. LH SIDE

1) Release the fuel pressure.
<Ref. to FU(H4DOTC)-39, RELEASING OF FUEL
PRESSURE, PROCEDURE, Fuel.>
2) Open the fuel filler flap lid, and remove the fuel
filler cap.
3) Remove the collector cover.

4) Disconnect the ground cable from battery.

5) Disconnect the connector from fuel injector.
6) Remove the screw and remove the fuel injector.

B: INSTALLATION

1. RH SIDE

Install in the reverse order of removal.

NOTE:
Use a new O-ring.

Tightening torque:

3.5 N

⋅

m (0.36 kgf-m, 2.6 ft-lb)

2. LH SIDE

Install in the reverse order of removal.

NOTE:
Use a new O-ring.

Tightening torque:

3.5 N

⋅

m (0.36 kgf-m, 2.6 ft-lb)

IN-00203

FU-01189

IN-00203

FU-01190

FU(H4DOTC)-30

FUEL INJECTION (FUEL SYSTEMS)

Oil Flow Control Solenoid Valve

12.Oil Flow Control Solenoid 

Valve

A: REMOVAL

1. INTAKE SIDE

Oil flow control solenoid valve is a unit with cam-
shaft cap.
Refer to “Camshaft” for removal. <Ref. to
ME(H4DOTC)-56, REMOVAL, Camshaft.>

2. EXHAUST SIDE

1) Disconnect the ground cable from battery.

2) Lift-up the vehicle.
3) Remove the under cover.
4) Remove the oil flow control solenoid valve from
cylinder head.

B: INSTALLATION

1. INTAKE SIDE

Install in the reverse order of removal.

2. EXHAUST SIDE

Install in the reverse order of removal.

IN-00203

FU-01191

FU(H4DOTC)-31

FUEL INJECTION (FUEL SYSTEMS)

Wastegate Control Solenoid Valve

13.Wastegate Control Solenoid 

Valve

A: REMOVAL

1) Remove the collector cover.
2) Disconnect the ground cable from battery.

3) Disconnect the connector from wastegate con-
trol solenoid valve (A).
4) Disconnect the pressure hose (B) from waste-
gate control solenoid valve.
5) Remove the wastegate control solenoid valve
from bracket.

B: INSTALLATION

Install in the reverse order of removal.

Tightening torque:

6.5 N

⋅

m (0.66 kgf-m, 4.8 ft-lb)

IN-00203

FU-01192

(A)

(B)

FU(H4DOTC)-32

FUEL INJECTION (FUEL SYSTEMS)

Front Oxygen (A/F) Sensor

14.Front Oxygen (A/F) Sensor

A: REMOVAL

1) Remove the collector cover.
2) Disconnect the ground cable from battery.

3) Disconnect the connector from front oxygen (A/
F) sensor.
4) Apply spray-type lubricant to the threaded por-
tion of front oxygen (A/F) sensor, and leave it for
one minute or more.
5) Remove the front oxygen (A/F) sensor.

CAUTION:
When removing the oxygen (A/F) sensor, wait 
until exhaust pipe cools, otherwise it will dam-
age exhaust pipe. 

B: INSTALLATION

1) Before installing front oxygen (A/F) sensor, ap-
ply anti-seize compound only to the threaded por-
tion of front oxygen (A/F) sensor to make the next
removal easier.

Anti-seize compound:

SS-30 JET LUBE

CAUTION:
Never apply anti-seize compound to protector 
of front oxygen (A/F) sensor.
2) Install the front oxygen (A/F) sensor.

Tightening torque:

21 N

⋅

m (2.1 kgf-m, 15.2 ft-lb)

3) Connect the connector of front oxygen (A/F)
sensor.

4) Connect the ground cable to battery.

5) Install the collector cover.

IN-00203

FU-01193

FU-01193

IN-00203