Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 28

FU(STI)-24

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

19) Connect the vacuum hose (A) and connector

(B) to the PCV hose assembly B.

20) Install the vacuum hose to clip (B), and install

the PCV hose assembly A to clip (A).

21) Connect the connector to the PCV hose as-

sembly A.

22) Connect the brake booster vacuum hose (A)

and pressure regulator vacuum hose (B) to the in-

take manifold.

23) Connect the engine coolant hoses to throttle

body.

24) Install the A/C pressure hoses to A/C compres-

sor. <Ref. to AC-41, INSTALLATION, Hose and

Pipe.>

25) Install the coolant filler tank. <Ref. to CO(STI)-

28, INSTALLATION, Coolant Filler Tank.>

26) Install the generator. <Ref. to SC(STI)-21, IN-

STALLATION, Generator.>

27) Install the intercooler. <Ref. to IN(STI)-13, IN-

STALLATION, Intercooler.>

28) Install the air intake boot.
Tightening torque:

2.5 N·m (0.3 kgf-m, 1.8 ft-lb)

29) Install the air intake duct. <Ref. to IN(STI)-10,

INSTALLATION, Air Intake Duct.>

30) Connect the battery ground terminal.

31) Lift up the vehicle.

32) Install the under cover. <Ref. to EI-28, INSTAL-

LATION, Front Under Cover.>

33) Lower the vehicle.

(A)

(B)

FU-06566

FU-06568

(A)

(B)

FU-06567

ME-05007

E N G

(A)

(B)

FU-05761

LU-02413

IN-00203

FU(STI)-25

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

34) Install the V-belt cover.
Tightening torque:

13 N·m (1.3 kgf-m, 9.6 ft-lb)

35) Fill engine coolant. <Ref. to CO(STI)-13, FILL-

ING OF ENGINE COOLANT, REPLACEMENT,

Engine Coolant.>

36) Charge the A/C system with refrigerant. <Ref.

to AC-20, PROCEDURE, Refrigerant Charging

Procedure.>

C: DISASSEMBLY

1) Remove clamp (A) holding the fuel pipe protec-

tor RH to the engine harness, and remove the fuel

pipe protector RH.

2) Remove the fuel pipe protector LH.

3) Remove the connector from the intake duct.

4) Remove the connector from the PCV hose as-

sembly.

5) Remove purge control solenoid valve 1 (A) and

purge control solenoid valve 2 (B).

6) Disconnect the connector (A) from the waste-

gate control solenoid valve, and disconnect the

vacuum hose (B) from the intake duct.

FU-03487

FU-06575

(A)

FU-06591

FU-05921

FU-06576

FU-06577

(A)

(B)

FU-06578

(A)

(B)

FU(STI)-26

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

7) Remove the solenoid valve bracket together with

the wastegate control solenoid valve.

8) Remove the engine ground terminals from the

intake manifold.

9) Disconnect the connector (A) from the throttle

position sensor, and the connector (B) from the

manifold pressure sensor.

10) Remove clip (A) holding the engine harness

and vacuum hose, clip (B) holding the engine har-

ness to the engine harness stay, and the bolt hold-

ing the engine harness to the intake manifold.

11) Remove the throttle body from the intake man-

ifold.

12) Remove the harness band (A) which holds the

engine harness to the fuel injector pipe.

• RH side

• LH side

13) Disconnect the connector from fuel injector.

FU-06579

FU-03588

FU-05918

(B)

(A)

FU-03565

(A)

(B)

FU-05692

FU-05919

(A)

FU-05920

(A)

FU-03508

FU(STI)-27

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

14) Disconnect the connector from the tumble gen-

erator valve assembly.

15) Remove the bolts which hold fuel injector pipe.

• RH side

• LH side

16) Remove the fuel injector.

17) Remove the harness brackets holding the en-

gine harness to the intake manifold, and remove

the engine harness.

18) Loosen the clamp holding the RH side fuel

hose to the fuel injector pipe RH, and remove the

fuel injector pipe RH.

19) Loosen the clamp holding the LH side fuel hose

to the fuel injector pipe LH, and remove the fuel in-

jector pipe LH.

FU-04604

FU-03512

FU-03594

FU-03595

FU-03513

FU-03567

FU-04605

FU-04606