Subaru Legacy III (2000-2003 year). Service manual — part 408
IN(H4DOSTC)-20
INTAKE (INDUCTION)
SOLENOID BOX ASSEMBLY
C: INSPECTION
1) Make sure the inner hoses are not cracked and that connections are tight.
2) Make sure the air filter is properly installed.
3) Make sure the solenoid valve is not damaged.
(1) Turbocharging pressure relief
valve control solenoid valve #2
(4) Turbocharging pressure relief
valve control solenoid valve #1
(6) Intake air valve control solenoid
valve
(2) Filter
(5) Exhaust valve control solenoid
valve (For negative pressure)
(7) Exhaust valve control solenoid
valve (For positive pressure)
(3) Exhaust valve control duty sole-
noid valve
IN-00104
1
2
6
8
5
5
5
5
3
10
12
12
12
12
3
( 1 )
( 2 )
( 3 )
( 4 )
( 5 )
( 6 )
( 7 )
IN(H4DOSTC)-21
INTAKE (INDUCTION)
WASTEGATE CONTROL SOLENOID VALVE
10.Wastegate Control Solenoid
Valve
A: REMOVAL
1) Remove the battery.
2) Remove the wastegate control solenoid valve
bracket installation nut from engine compartment.
3) Remove the front tire LH, and then lift-up the ve-
hicle.
4) Remove the front mudguard LH.
5) Pull out the wastegate control solenoid valve
and bracket from the vehicle as a unit.
6) Disassemble the connector (A), pressure hose
(B) and solenoid valve (C).
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
16 N·m (1.6 kgf-m, 11.4 ft-lb)
IN-00105
IN-00106
( A )
( B )
( C )
IN-00105
IN(H4DOSTC)-22
INTAKE (INDUCTION)
SURGE TANK
11.Surge Tank
A: REMOVAL
1) Remove the battery.
2) Remove the surge tank installation nut from en-
gine compartment.
3) Remove the front tire LH, and lift the vehicle.
4) Remove the front mudguard LH.
5) Remove the surge tank.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
16 N·m (1.6 kgf-m, 11.8 ft-lb)
IN-00107
IN-00108
IN-00108
IN-00107
IN(H4DOSTC)-23
INTAKE (INDUCTION)
DIFFERENTIAL PRESSURE SENSOR
12.Differential Pressure Sensor
A: REMOVAL
1) Remove the ground cable from battery.
2) Disconnect the connector (A) of differential pres-
sure sensor.
3) Disconnect the hose (B) of differential pressure
sensor.
4) Remove the differential pressure sensor.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
6.4 N·m (0.65 kgf-m, 4.7 ft-lb)
FU-00009
IN-00109
( A )
( B )
IN-00109
( A )
( B )
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