Subaru Impreza 3 / Impreza WRX / Impreza WRX STI. Service manual — part 130
FU(w/o STI)-47
Fuel Injector
FUEL INJECTION (FUEL SYSTEMS)
2. LH SIDE
Install in the reverse order of removal.
NOTE:
Use new O-rings, rubbers and seal rings.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
Tightening torque:
19 N·m (1.9 kgf-m, 14.0 ft-lb)
C: INSPECTION
1) Check that the fuel injector has no deformation,
cracks or other damages.
2) Measure the resistance between fuel injector
terminals.
FU-05752
FU-04299
FU-06551
Terminal No.
Standard
1 and 2
Approx. 12.0 Ω
(when 20°C (68°F))
2 1
EC-02428
FU(w/o STI)-48
Tumble Generator Valve Assembly
FUEL INJECTION (FUEL SYSTEMS)
12.Tumble Generator Valve As-
sembly
A: REMOVAL
1) Release the fuel pressure. <Ref. to FU(w/o STI)-
65, RELEASING OF FUEL PRESSURE, PROCE-
2) Disconnect the ground cable from battery.
3) Open the fuel filler lid and remove the fuel filler
cap.
4) Remove the intake manifold. <Ref. to FU(w/o
STI)-18, REMOVAL, Intake Manifold.>
5) Disconnect the connector from the tumble gen-
erator valve assembly.
6) Remove the fuel injector. <Ref. to FU(w/o STI)-
7) Remove the tumble generator valve assembly
from the intake manifold.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Use a new gasket.
Tightening torque:
8.3 N·m (0.8 kgf-m, 6.1 ft-lb)
C: INSPECTION
1) Check that the tumble generator valve assembly
has no deformation, cracks or other damages.
2) Check tumble generator valve for contamination
or clogging.
IN-00203
FU-05811
FU-04751
FU(w/o STI)-49
Tumble Generator Valve Actuator
FUEL INJECTION (FUEL SYSTEMS)
13.Tumble Generator Valve Ac-
tuator
A: SPECIFICATION
The tumble generator valve assembly cannot be
disassembled.
Refer to “Tumble Generator Valve Assembly” for
removal and installation procedures. <Ref. to
FU(w/o STI)-48, REMOVAL, Tumble Generator
Valve Assembly.> <Ref. to FU(w/o STI)-48, IN-
FU(w/o STI)-50
Oil Flow Control Solenoid Valve
FUEL INJECTION (FUEL SYSTEMS)
14.Oil Flow Control Solenoid
Valve
A: REMOVAL
Oil flow control solenoid valve is a unit with front
camshaft cap.
Refer to “Camshaft” for removal procedures. <Ref.
to ME(w/o STI)-59, REMOVAL, Camshaft.>
B: INSTALLATION
Refer to “Camshaft” for installation procedure.
<Ref. to ME(w/o STI)-61, INSTALLATION, Cam-
C: DISASSEMBLY
1) Remove the two mounting bolts securing oil re-
turn cover, and remove the oil return cover and
gasket.
2) Remove the bolt securing oil flow control sole-
noid valve, and remove the oil flow control solenoid
valve.
D: ASSEMBLY
1) Install the oil flow control solenoid valve.
Tightening torque:
6.4 N·m (0.7 kgf-m, 4.7 ft-lb)
2) Apply liquid gasket to the two bolts securing oil
return cover.
Liquid gasket:
THREE BOND 1324 (Part No. 004403042) or
equivalent
3) Attach the oil return cover and gasket.
NOTE:
Use a new gasket.
Tightening torque:
9 N·m (0.9 kgf-m, 6.6 ft-lb)
E: INSPECTION
1) Check that the oil flow control solenoid valve has
no deformation, cracks or other damages.
2) Measure the resistance between the oil flow
control solenoid valve terminals.
(A) Oil flow control solenoid valve
(B) Oil return cover
(C) Gasket
(D) Front camshaft cap
FU-05699
(A)
(D)
(C)
(B)
(A) Oil flow control solenoid valve
(B) Oil return cover
(C) Gasket
(D) Front camshaft cap
Terminal No.
Standard
1 and 2
7.4±0.5 Ω
(when 20°C (68°F))
FU-05700
(A)
(D)
(C)
(B)
2 1
EC-02428
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