Subaru Legacy (2005 year). Service manual — part 244
FUEL INJECTION
(FUEL SYSTEMS)
FU(H4DOTC)
Page
General Description . . . . . . . . . . . . . . . . . . . . . 2
Throttle Body. . . . . . . . . . . . . . . . . . . . . . . .11
Intake Manifold. . . . . . . . . . . . . . . . . . . . . . ..12
Engine Coolant Temperature Sensor. . . . . . . . . . . . . . 22
Crankshaft Position Sensor. . . . . . . . . . . . . . . . . ...23
Camshaft Position Sensor. . . . . . . . . . . . . . . . . . .24
Knock Sensor. . . . . . . . . . . . . . . . . . . . . . . 25
Throttle Position Sensor. . . . . . . . . . . . . . . . . . . 26
Mass Air Flow and Intake Air Temperature Sensor . . . . . . . . ..27
Manifold Absolute Pressure Sensor. . . . . . . . . . . . . . ..28
Fuel Injector . . . . . . . . . . . . . . . . . . . . . . . ..29
Oil Flow Control Solenoid Valve. . . . . . . . . . . . . . . . 30
Wastegate Control Solenoid Valve . . . . . . . . . . . . . . ...31
Front Oxygen (A/F) Sensor . . . . . . . . . . . . . . . . . ...32
Rear Oxygen Sensor. . . . . . . . . . . . . . . . . . . . .33
Engine Control Module (ECM) . . . . . . . . . . . . . . . . ..34
Main Relay . . . . . . . . . . . . . . . . . . . . . . . . 35
Fuel Pump Relay. . . . . . . . . . . . . . . . . . . . . ...36
Electronic Throttle Control Relay . . . . . . . . . . . . . . . ..37
Fuel Pump Control Unit. . . . . . . . . . . . . . . . . . . .38
Fuel . . . . . . . . . . . . . . . . . . . . . . . . . . ...39
Fuel Tank . . . . . . . . . . . . . . . . . . . . . . . . ..40
Fuel Filler Pipe . . . . . . . . . . . . . . . . . . . . . . ..46
Fuel Pump. . . . . . . . . . . . . . . . . . . . . . . . .48
Fuel Level Sensor . . . . . . . . . . . . . . . . . . . . . .50
Fuel Sub Level Sensor. . . . . . . . . . . . . . . . . . . ..51
Fuel Filter . . . . . . . . . . . . . . . . . . . . . . . . ..53
Fuel Bypass Valve . . . . . . . . . . . . . . . . . . . . . 54
Fuel Delivery, Return and Evaporation Lines. . . . . . . . . . . 55
Fuel System Trouble in General . . . . . . . . . . . . . . . ...58
FU(H4DOTC)-2
FUEL INJECTION (FUEL SYSTEMS)
General Description
1. General Description
A: SPECIFICATION
Fuel tank
Capacity
64
2 (16.9 US gal, 14.1 Imp gal)
Location
Under rear seat
Fuel pump
Type
Impeller
Shutoff discharge pressure
550 — 850 kPa (5.61 — 8.67 kgf/cm
2
, 79.8 — 123.3 psi)
Discharge rate
155
2 (40.9 US gal, 34.1 Imp gal)/h or more
[12 V at 300 kPa (3.06 kgf/cm
2
, 43.5 psi)]
Fuel filter
In-tank type
FU(H4DOTC)-3
FUEL INJECTION (FUEL SYSTEMS)
General Description
B: COMPONENT
1. INTAKE MANIFOLD
FU-01154
(8)
(21)
(9)
(9)
T2
T4
T4
T4
T4
T5
T5
T2
T2
T2
T2
T2
T1
(4)
(5)
(6)
(7)
(7)
(8)
T3
T3
(17)
(18)
(19)
(16)
(15)
(20)
(10)
(12)
(1)
(11)
(10)
(12)
(2)
(3)
(11)
T3
T3
(14)
T4
T4
T4
(3)
(22)
(13)
(23)
(23)
FU(H4DOTC)-4
FUEL INJECTION (FUEL SYSTEMS)
General Description
2. AIR INTAKE SYSTEM
(1)
Fuel pipe ASSY
(12)
O-ring
(21)
Ground stay
(2)
Fuel hose
(13)
Fuel injector pipe LH
(22)
Coolant filler tank stay
(3)
Clip
(14)
Fuel injector pipe RH
(23)
O-ring
(4)
Purge control solenoid valve
(15)
Solenoid valve bracket
(5)
Vacuum hose
(16)
Manifold absolute pressure sensor Tightening torque: N
⋅
m (kgf-m, ft-lb)
(6)
Vacuum control hose
(17)
Filter
T1: 1.5 (0.15, 1.1)
(7)
Intake manifold gasket
(18)
Intake manifold
T2: 6.5 (0.66, 4.8)
(8)
Guide pin
(19)
Wastegate control solenoid valve
ASSY
T3: 8.3 (0.85, 6.1)
(9)
Intake manifold (lower)
T4: 19 (1.9, 14)
(10)
Fuel injector
(20)
Vacuum hose
T5: 25 (2.5, 18.4)
(11)
Seal ring
(1)
O-ring
Tightening torque: N
⋅
m (kgf-m, ft-lb)
(2)
Throttle body
T: 8 (0.8, 5.9)
FU-01155
T
(1)
(2)
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