Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Manual — part 124

FU(w/o STI)-23

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

2) Connect the fuel delivery hose, fuel return hose,

and evaporation hose.

3) Connect the front oxygen (A/F) sensor connec-

tor, and secure the engine harness to the rocker

cover RH with clip (A) and stay (B).
Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

4) Lift up the vehicle.

5) Connect the connector to the ignition coil.

6) Lower the vehicle.

7) Connect the connector to oil flow control sole-

noid valve.

(A) Fuel delivery hose
(B) Fuel return hose

(C) Evaporation hose

FU-06721

(C)

(B)

(A)

FU-05714

(A)

(B)

FU-06536

FU-06535

FU(w/o STI)-24

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

8) Connect the connectors to camshaft position

sensor.

9) Connect the connector to the secondary air com-

bination valve.

10) Connect the connector to the power steering

pump switch.

11) Connect the connector (A) to the engine cool-

ant temperature sensor, connector (B) to the oil

pressure switch, and the connector (C) to the

crankshaft position sensor.

12) Install the engine harness connector to engine

harness bracket, then connect the bulkhead har-

ness connector to the engine harness connector.

FU-04616

FU-05712

FU-04598

FU-05711

(C)

(B)

(A)

FU-06604

FU(w/o STI)-25

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

13) Connect the connector to the PCV hose as-

sembly B and PCV hose assembly C.

14) Connect the connector (A) to the PCV hose as-

sembly A and the connector (B) to the knock sen-

sor.

15) Connect the air control hose (A) to the waste-

gate actuator, and install the turbocharger to the in-

take duct.
Tightening torque:

3 N·m (0.3 kgf-m, 2.2 ft-lb)

16) Connect the vacuum hose to the nipple.

17) Connect the engine coolant hoses to throttle

body.

18) Install the intake duct to the throttle body, and

install the bolts which secure the PCV pipe assem-

bly to the intake manifold.
Tightening torque:

T1: 3 N·m (0.3 kgf-m, 2.2 ft-lb)

T2: 6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

FU-06534

FU-05708

(A)

(B)

FU-05866

(A)

FU-05709

FU-05669

T2

T1

FU-06539

FU(w/o STI)-26

Intake Manifold

FUEL INJECTION (FUEL SYSTEMS)

19) Install the bolts which secure the air bypass

pipe to the intake manifold, and install the brake

booster vacuum hose to the clip (A).
Tightening torque:

6.4 N·m (0.7 kgf-m, 4.7 ft-lb)

20) Connect the brake booster vacuum hose.

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

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

Pipe.>

22) Install the coolant filler tank. <Ref. to CO(w/o

STI)-28, INSTALLATION, Coolant Filler Tank.>

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

STALLATION, Generator.>

24) Install the intercooler. <Ref. to IN(w/o STI)-12,

INSTALLATION, Intercooler.>

25) Install the air intake duct and air cleaner case.

<Ref. to IN(w/o STI)-8, INSTALLATION, Air Clean-

er Case.> <Ref. to IN(w/o STI)-10, INSTALLA-

TION, Air Intake Duct.>

26) Connect the battery ground terminal.

27) Lift up the vehicle.

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

LATION, Front Under Cover.>

29) Lower the vehicle.

30) Fill engine coolant. <Ref. to CO(w/o STI)-13,

FILLING OF ENGINE COOLANT, REPLACE-

MENT, Engine Coolant.>

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

to AC-20, PROCEDURE, Refrigerant Charging

Procedure.>

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

13 N·m (1.3 kgf-m, 9.6 ft-lb)

C: DISASSEMBLY

1) Remove the fuel pipe protector RH from the in-

take manifold.

2) Remove the engine ground terminal from the

fuel pipe protector LH and remove the fuel pipe pro-

tector LH from the intake manifold.

3) Disconnect the vacuum hose (A) from intake

manifold.

FU-06527

(A)

FU-06533

IN-00203

ME-03386

FU-06561

FU-06540