Subaru Legacy IV (2008 year). Manual - part 231

FU(H4DOTC)-27

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

D: ASSEMBLY

1) Install the tumble generator valve assembly onto
intake manifold.

NOTE:
Use new O-rings.

Tightening torque:

8.3 N·m (0.8 kgf-m, 6.1 ft-lb)

2) Install the fuel injector pipe.
3) Connect fuel hoses to fuel injector pipes on both
sides, and secure them with the clamps.

Tightening torque:

1.25 N·m (0.1 kgf-m, 0.9 ft-lb)

4) Tighten the bolts which secure the fuel injector
pipe RH to the lower side of the intake manifold.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

5) Tighten the bolts which secure fuel injector pipe
onto intake manifold.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

6) Install the fuel injector.
• RH  side

• LH  side

FU-03039

FU-03111

FU-03110

FU-03109

FU-03094

FU-03091

FU(H4DOTC)-28

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

7) Tighten the bolts which secure fuel injector pipe
onto intake manifold.

Tightening torque:

19 N·m (1.9 kgf-m, 14.0 ft-lb)

• LH  side

• RH side

8) Tighten the bolt which holds the fuel injector pipe
LH to the front side of the intake manifold, and con-
nect the pressure regulator vacuum hose to the in-
take manifold.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

9) Install PCV pipe (A), harness assembly (B) and
intake duct (C) to the intake manifold.

Tightening torque:

6.5 N·m (0.7 kgf-m, 4.8 ft-lb)

10) Connect the connector to the fuel injector and
the tumble generator valve assembly.

11) Install the throttle body to the intake manifold.

NOTE:
Use new O-rings.

Tightening torque:

8 N·m (0.8 kgf-m, 5.9 ft-lb)

FU-03090

FU-03089

FU-04031

FU-03033

(C)

(A)

(B)

FU-03088

FU-03815

FU(H4DOTC)-29

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

12) Connect the connector to the throttle position
sensor.

13) Connect the evaporation hose to the purge
control solenoid valve 2.

NOTE:
Connect the evaporation hose as shown in the fig-
ure.

14) Connect the connectors to the wastegate con-
trol solenoid valve, manifold absolute pressure
sensor and purge control solenoid valve 2, and in-
stall the solenoid valve bracket assembly to the in-
take manifold.

Tightening torque:

T1: 17 N·m (1.7 kgf-m, 12.5 ft-lb)
T2: 19 N·m (1.9 kgf-m, 14.0 ft-lb)

15) Connect the filter assembly.

(A) Purge control solenoid valve 1

(B) Purge control solenoid valve 2

(a) To intake manifold

(b) To intake duct

(c) To fuel pipe

FU-03463

EC-02201

(A)

(B)

(b)

(c)

(c)

(a)

EC-02252

T2

T1

FU-03030

FU(H4DOTC)-30

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

16) Connect the evaporation hose and the connec-
tor to the purge control solenoid valve 1, and install
the purge control solenoid valve 1 to the intake
manifold.

NOTE:
Connect the evaporation hose as shown in the fig-
ure.

Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

17) Install the fuel pipe protector RH to the intake
manifold.

Tightening torque:

19 N·m (1.9 kgf-m, 14.0 ft-lb)

18) Install the fuel pipe protector LH to the intake
manifold, and install the engine ground terminal to
the fuel pipe protector LH.

Tightening torque:

19 N·m (1.9 kgf-m, 14.0 ft-lb)

E: INSPECTION

Make sure that the fuel pipe and fuel hose are not
cracked and that the connections are tight.

(A) Purge control solenoid valve 1

(B) Purge control solenoid valve 2

(a) To intake manifold

(b) To intake duct

(c) To fuel pipe

EC-02201

(A)

(B)

(b)

(c)

(c)

(a)

FU-04030

FU-03087

FU-03086