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2004 FORESTER SERVICE MANUAL
QUICK REFERENCE INDEX
ENGINE SECTION 1
This service manual has been prepared
to provide SUBARU service personnel
with the necessary information and data
for the correct maintenance and repair
of SUBARU vehicles.
This manual includes the procedures
for maintenance, disassembling, reassembling, inspection and adjustment of
components and diagnostics for guidance of experienced mechanics.
Please peruse and utilize this manual
fully to ensure complete repair work for
satisfying our customers by keeping
their vehicle in optimum condition.
When replacement of parts during
repair work is needed, be sure to use
SUBARU genuine parts.
FUEL INJECTION (FUEL SYSTEM)
FU(H4SO)
EMISSION CONTROL
(AUX. EMISSION CONTROL DEVICE)
EC(H4SO)
INTAKE (INDUCTION)
IN(H4SO)
MECHANICAL
ME(H4SO)
EXHAUST
EX(H4SO)
COOLING
CO(H4SO)
LUBRICATION
LU(H4SO)
SPEED CONTROL SYSTEM
SP(H4SO)
IGNITION
IG(H4SO)
STARTING/CHARGING SYSTEM
SC(H4SO)
ENGINE (DIAGNOSTIC)
EN(H4SO)
All information, illustration and specifications contained in this manual are
based on the latest product information
available at the time of publication
approval.
FUJI HEAVY INDUSTRIES LTD.
G8080GE2
FUEL INJECTION (FUEL SYSTEM)
FU(H4SO)
1.
2.
3.
4.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
18.
19.
20.
21.
22.
23.
24.
25.
26.
27.
28.
29.
Page
General Description ....................................................................................2
Throttle Body.............................................................................................13
Intake Manifold..........................................................................................14
Engine Coolant Temperature Sensor........................................................25
Crankshaft Position Sensor.......................................................................26
Camshaft Position Sensor.........................................................................27
Knock Sensor............................................................................................28
Throttle Position Sensor............................................................................29
Manifold Absolute Pressure Sensor..........................................................31
Intake Air Temperature Sensor .................................................................32
Idle Air Control Solenoid Valve .................................................................33
EGR Valve ................................................................................................34
Fuel Injector ..............................................................................................35
Front Oxygen (A/F) Sensor .......................................................................40
Rear Oxygen Sensor.................................................................................42
Engine Control Module (ECM) ..................................................................44
Main Relay ................................................................................................45
Fuel Pump Relay.......................................................................................46
Fuel ...........................................................................................................47
Fuel Tank ..................................................................................................48
Fuel Filler Pipe ..........................................................................................51
Fuel Pump.................................................................................................55
Fuel Level Sensor .....................................................................................57
Fuel Sub Level Sensor..............................................................................58
Fuel Filter ..................................................................................................60
Fuel Cut Valve...........................................................................................61
Fuel Damper Valve ...................................................................................62
Fuel Delivery, Return and Evaporation Lines............................................63
Fuel System Trouble in General ...............................................................66
General Description
FUEL INJECTION (FUEL SYSTEM)
1. General Description
A: SPECIFICATION
Model
Fuel tank
Fuel pump
Shutoff discharge pressure
Discharge flow
Fuel filter
Specification
602 (15.9 US gal, 13.2 Imp gal)
Under rear seat
Impeller
Capacity
Location
Type
370 — 677 kPa (3.77 — 6.9 kg/cm2, 53.6 — 98 psi)
More than 652 (17.2 US gal, 14.3 Imp gal) /h
[12 V at 300 kPa (3.06 kg/cm2, 43.5 psi)]
Cartridge type
FU(H4SO)-2
General Description
FUEL INJECTION (FUEL SYSTEM)
B: COMPONENT
1. INTAKE MANIFOLD
(2)
T4
(18)
T2
(4)
(3)
T4
T4
(5)
(8)
(7)
T5
(6)
T3
T4
T2
(2)
(20)
T4
(22)
T4
(18)
(23)
T5
(4)
(3)
(5)
T5
T5
(14)
(1)
(9)
(19)
T3
(10)
T4
T4
T5
(21)
(17)
T1
T1
T1
(13)
T2
(16)
(19)
(11)
(16)
T1
(12)
(15)
(17)
T1
(17)
T1
T4
T2
(16)
FU-02084
FU(H4SO)-3
General Description
FUEL INJECTION (FUEL SYSTEM)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Intake manifold gasket RH
Fuel injector pipe
Fuel injector
O-ring
O-ring
Plug
PCV valve
Purge control solenoid valve
Nipple
Intake manifold
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
Intake manifold gasket LH
Fuel pipe protector LH
Plug cord holder LH
Fuel pipe protector RH
Fuel pipe ASSY
Fuel hose
Clip
Clip
Guide pin
Plug cord holder RH
FU(H4SO)-4
(21)
(22)
(23)
Accelerator cable bracket
EGR valve
Gasket
Tightening torque: N⋅m (kgf-m, ft-lb)
T1: 1.5 (0.15, 1.1)
T2: 6.4 (0.7, 4.7)
T3: 17 (1.7, 12.5)
T4: 19 (1.9, 13.7)
T5: 25 (2.5, 18.1)
General Description
FUEL INJECTION (FUEL SYSTEM)
2. AIR INTAKE SYSTEM
(7)
(6)
T1
T1
(8)
(4)
(2)
T2
(3)
(1)
(5)
T1
FU-00247
(1)
(2)
(3)
(4)
Gasket
Throttle position sensor
Idle air control solenoid valve
Manifold absolute pressure sensor
(5)
(6)
(7)
(8)
Throttle body
Intake air temperature sensor
Grommet
Air cleaner case
FU(H4SO)-5
Tightening torque: N⋅m (kgf-m, ft-lb)
T1: 1.6 (0.16, 1.2)
T2: 22 (2.2, 15.9)
General Description
FUEL INJECTION (FUEL SYSTEM)
3. CRANKSHAFT POSITION, CAMSHAFT POSITION AND KNOCK SENSORS
T1
T2
(1)
(2)
T1
(4)
(3)
T1
FU-00414
(1)
(2)
(3)
Crankshaft position sensor
Knock sensor
Camshaft position sensor
(4)
Camshaft position sensor support
FU(H4SO)-6
Tightening torque: N⋅m (kgf-m, ft-lb)
T1: 6.4 (0.65, 4.7)
T2: 24 (2.4, 17.4)
General Description
FUEL INJECTION (FUEL SYSTEM)
4. FUEL TANK
T1
T1
(10)
(30)
(17)
E
(11)
(9)
(7)
(12)
(12)
D
(12)
B
A
C
(15)
(14)
(8)
(29)
T1
T1
(13)
(29)
(12)
D
(10)
(28)
E
(6)
B
(16)
(12)
(12)
(5)
(22)
A
(19)
(12)
(18)
(21) (20)
(27)
(12)
(9)
(12)
(12)
(26)
F
(23)
(12)
(24)
(2)
T3
(20)
T3
(12)
(25)
(4)
(2)
T2
T2
(1)
(3)
T2
T2
FU-02083
FU(H4SO)-7
General Description
FUEL INJECTION (FUEL SYSTEM)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
(11)
(12)
Heat shield cover
Fuel tank band
Protector LH
Protector RH
Fuel tank
Fuel pump gasket
Fuel pump ASSY
Fuel level sensor
Fuel cut valve gasket
Fuel cut valve
Evaporation hose A
Clip
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
(21)
(22)
(23)
(24)
Evaporation hose B
Joint pipe
Evaporation hose C
Evaporation pipe ASSY
Evaporation pipe
Evaporation hose D
Fuel return hose A
Retainer
Quick connector
Evaporation hose E
Fuel pipe ASSY
Evaporation hose F
FU(H4SO)-8
(25)
(26)
(27)
(28)
(29)
(30)
Fuel return hose B
Fuel sub level sensor gasket
Jet pump filter
Fuel sub level sensor
Evaporation hose G
Evaporation hose H
Tightening torque: N⋅m (kgf-m, ft-lb)
T1: 4.4 (0.45, 3.3)
T2: 7.4 (0.75, 5.4)
T3: 33 (3.4, 24.3)
General Description
FUEL INJECTION (FUEL SYSTEM)
5. FUEL LINE
(19)
B
(24)
(18)
(20)
(17)
A
(16)
(15)
(24)
(25)
(22)
(21) (13)
T
(23)
(14)
B
C
A
(1)
(1)
C
(12)
(8)
(1) (1) (10)
(9)
(1)
(1)
(1)
(1)
(10)
(11)
(7)
(1)
(6)
(2)
(1)
(5)
(4)
(3)
FU-00516
FU(H4SO)-9
General Description
FUEL INJECTION (FUEL SYSTEM)
(1)
(2)
(3)
(4)
(5)
(6)
(7)
(8)
(9)
(10)
Clip
Fuel delivery hose A
Fuel filter bracket
Fuel filter holder
Fuel filter cup
Fuel filter
Evaporation hose
Fuel damper valve
Fuel delivery hose B
Fuel return hose
(11)
(12)
(13)
(14)
(15)
(16)
(17)
(18)
(19)
(20)
Fuel pipe ASSY
Grommet
Canister hose A
Canister
Canister bracket plate
Cushion
Canister bracket spacer
Rear canister bracket
Two-way valve return hose
Two-way valve
FU(H4SO)-10
(21)
(22)
(23)
(24)
(25)
Two-way valve drain hose A
Connector
Two-way valve drain hose B
Clamp
Front canister bracket
Tightening torque: N⋅m (kgf-m, ft-lb)
T: 23 (2.3, 17.0)
General Description
FUEL INJECTION (FUEL SYSTEM)
6. FUEL FILLER PIPE
(11)
(9)
(8)
(10)
(12)
T
(1)
(3)
(5)
T
(2)
T
T
(6)
T
(4)
(7)
(3)
FU-00006
(1)
(2)
(3)
(4)
(5)
Fuel filler pipe ASSY
Evaporation hose holder
Clip
Clamp
Air vent hose
(6)
(7)
(8)
(9)
(10)
Air vent pipe
Air vent pipe holder
Fuel filler pipe packing
Fuel filler ring
Fuel filler cap
FU(H4SO)-11
(11)
(12)
Fuel filler cap tether
Fuel filler pipe protector
Tightening torque: N⋅m (kgf-m, ft-lb)
T: 7.5 (0.76, 5.5)
General Description
FUEL INJECTION (FUEL SYSTEM)
C: CAUTION
• Wear working clothing, including a cap, protective goggles, and protective shoes during operation.
• Remove contamination including dirt and corrosion before removal, installation or disassembly.
• Keep the disassembled parts in order and protect them from dust or dirt.
• Before removal, installation or disassembly, be
sure to clarify the failure. Avoid unnecessary removal, installation, disassembly, and replacement.
• Be careful not to burn yourself, because each
part on the vehicle is hot after running.
• Be sure to tighten fasteners including bolts and
nuts to the specified torque.
• Place shop jacks or rigid racks at the specified
points.
• Before disconnecting electrical connectors of
sensors or units, be sure to disconnect negative
terminal from battery.
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel on the floor.
D: PREPARATION TOOL
ILLUSTRATION
TOOL NUMBER
DESCRIPTION
24082AA230
CARTRIDGE
(Newly adopted tool)
REMARKS
Troubleshooting for electrical system.
ST24082AA230
22771AA030
SUBARU SELECT
MONITOR KIT
ST22771AA030
FU(H4SO)-12
Troubleshooting for electrical systems.
• English: 22771AA030 (Without printer)
• German: 22771AA070 (Without printer)
• French: 22771AA080 (Without printer)
• Spanish: 22771AA090 (Without printer)
Throttle Body
FUEL INJECTION (FUEL SYSTEM)
2. Throttle Body
7) Remove the bolts (B) which install throttle body
to the intake manifold.
A: REMOVAL
1) Disconnect the ground cable from battery.
(B)
(A)
(A)
(B)
FU-00009
2) Remove the air cleaner case. <Ref. to
IN(H4SO)-6, REMOVAL, Air Cleaner Case.>
3) Disconnect the accelerator cable (A).
4) Disconnect the cruise control cable (B). (With
cruise control model)
FU-00253
B: INSTALLATION
1) Install in the reverse order of removal.
NOTE:
Replace the gasket with a new one.
Tightening torque:
THROTTLE BODY;
22 N⋅m (2.2 kgf-m, 15.9 ft-lb)
2) Adjust the accelerator cable play. <Ref. to
SP(H4SO)-7, ADJUSTMENT, Accelerator Pedal.>
(A)
(B)
FU-00251
5) Disconnect the connectors from idle air control
solenoid valve, throttle position sensor and manifold absolute pressure sensor.
(C)
(B)
(A)
FU-00378
(A) Throttle position sensor
(B) Manifold absolute pressure sensor
(C) Idle air control solenoid valve
6) Disconnect the engine coolant hoses (A) from
the throttle body.
FU(H4SO)-13
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
3. Intake Manifold
(3) Remove the bolts which hold power steering
pipes onto the intake manifold protector.
A: REMOVAL
1) Release the fuel pressure. <Ref. to FU(H4SO)47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
NOTE:
Do not disconnect the power steering hose.
FU-00255
(4) Remove the bolts which install power steering pump bracket.
FU-00009
4) Remove the air intake duct and air cleaner case.
<Ref. to IN(H4SO)-7, REMOVAL, Air Intake Duct.>
<Ref. to IN(H4SO)-6, REMOVAL, Air Cleaner
Case.>
5) Disconnect the accelerator cable (A).
6) Disconnect the cruise control cable (B). (With
cruise control model)
FU-00139
(5) Disconnect the connector from the power
steering pump switch.
(A)
(B)
FU-00251
7) Remove the power steering pump and reservoir
tank from bracket.
(1) Remove the resonator chamber. <Ref. to
IN(H4SO)-8, REMOVAL, Resonator Chamber.>
(2) Remove the front side V-belt. <Ref. to
ME(H4SO)-43, REMOVAL, V-belt.>
FU-00017
(6) Remove the power steering tank from the
bracket by pulling it upwards.
FU-00020
FU(H4SO)-14
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
(7) Place the power steering pump on the right
side wheel apron.
12) Remove the air cleaner case stay RH and engine harness bracket, and disconnect the engine
harness connectors from the bulkhead harness
connectors.
FU-00021
8) Disconnect the spark plug cords from the spark
plugs.
9) Disconnect the PCV hose from the intake manifold.
FU-00258
13) Disconnect the connectors from the engine
coolant temperature sensor.
FU-00145
FU-00141
10) Disconnect the engine coolant hose (A) from
the throttle body.
14) Disconnect the knock sensor connector.
(A)
(A)
FU-00062
FU-00361
11) Disconnect the brake booster hose.
15) Disconnect the connector from the crankshaft
position sensor.
FU-00143
FU(H4SO)-15
FU-00056
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
16) Disconnect the connector from the oil pressure
switch.
19) Disconnect the fuel hoses from the fuel pipes.
WARNING:
• Do not spill fuel.
• Catch fuel from hoses in a container or cloth.
(A)
(B)
FU-00146
17) Disconnect the connector from the camshaft
position sensor.
(C)
FU-00259
(A) Fuel delivery hose
(B) Fuel return hose
(C) Evaporation hose
20) Remove the bolts which hold intake manifold
onto the cylinder heads.
FU-00147
18) Remove the EGR pipe from intake manifold.
FU-00260
21) Remove the intake manifold.
B: INSTALLATION
FU-00148
1) Install the intake manifold onto the cylinder
heads.
NOTE:
Replace the gaskets with new ones.
Tightening torque:
25 N⋅m (2.5 kgf-m, 18.1 ft-lb)
FU-00260
FU(H4SO)-16
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
6) Connect the connector to the crankshaft position
sensor.
2) Connect the fuel hoses.
(A)
(B)
(C)
FU-00259
FU-00056
(A) Fuel delivery hose
(B) Fuel return hose
(C) Evaporation hose
7) Connect the knock sensor connector.
3) Connect the EGR pipe to intake manifold.
Tightening torque:
34 N⋅m (3.4 kgf-m, 24.6 ft-lb)
FU-00062
8) Connect the connectors to the engine coolant
temperature sensor.
FU-00148
4) Connect the connector to the camshaft position
sensor.
FU-00145
9) Install the air cleaner case stay RH and engine
harness bracket, and connect the engine harness
connectors to the bulkhead connectors.
FU-00147
5) Connect the connector to the oil pressure switch.
FU-00258
FU-00146
FU(H4SO)-17
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
(2) Connect the connector to the power steering
pump switch.
10) Connect the brake booster hose.
FU-00143
11) Connect the engine coolant hose (A) to the
throttle body.
FU-00017
(3) Tighten the bolts which install power steering pump bracket.
Tightening torque:
22 N⋅m (2.2 kgf-m, 15.9 ft-lb)
(A)
(A)
FU-00361
12) Connect the PCV hose to the intake manifold.
FU-00139
(4) Install the power steering pipes onto the
right side intake manifold protector.
FU-00141
13) Connect the spark plug cords to the spark
plugs.
14) Install the power steering pump and reservoir
tank to bracket.
(1) Install the reservoir tank to bracket.
FU-00255
(5) Install the front side V-belt. <Ref.
ME(H4SO)-43, INSTALLATION, V-belt.>
FU-00020
FU(H4SO)-18
to
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
(6) Install the resonator chamber.
19) Connect the battery ground cable to battery.
Tightening torque:
33 N⋅m (3.4 kgf-m, 24.3 ft-lb)
FU-00009
C: DISASSEMBLY
IN-00044
15) Connect the accelerator cable (A). <Ref. to
SP(H4SO)-9, INSTALLATION, Accelerator Control
Cable.>
16) Connect the cruise control cable (B). (With cruise
control models)
1) Disconnect the engine ground terminal from the
intake manifold.
FU-00263
2) Disconnect the connector from the ignition coil &
ignitor assembly.
(A)
(B)
FU-00251
17) Install the air intake duct and air cleaner case.
<Ref. to IN(H4SO)-7, INSTALLATION, Air Intake
Duct.> <Ref. to IN(H4SO)-6, INSTALLATION, Air
Cleaner Case.>
18) Connect the connector to the fuel pump relay.
FU-00264
3) Remove the ignition coil & ignitor assembly.
FU-00262
FU-00286
4) Remove the throttle body. <Ref. to FU(H4SO)13, REMOVAL, Throttle Body.>
5) Remove the EGR valve. <Ref. to FU(H4SO)-34,
REMOVAL, EGR Valve.>
FU(H4SO)-19
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
6) Disconnect the pressure regulator vacuum hose
from the intake manifold.
10) Disconnect the connector from the purge control solenoid valve.
FU-00265
FU-00269
11) Disconnect the air by-pass hose from the purge
control solenoid valve.
12) Remove the harness bands (A) and harness
bracket (B) which hold engine harness onto the intake manifold.
7) Remove the fuel pipe protector LH.
(A)
(A)
FU-00266
8) Remove the fuel pipe protector RH.
(A)
(B)
FU-00517
13) Remove the engine harness from the intake
manifold.
14) Remove the purge control solenoid valve.
FU-00267
9) Disconnect the connectors from the fuel injectors.
FU-00271
15) Remove the bolt which installs injector pipe on
the intake manifold as shown in figure.
FU-00268
FU-00272
FU(H4SO)-20
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
16) Remove the two bolts which hold fuel pipe assembly on the left side of intake manifold.
19) Loosen the clamp which holds the front right
side fuel hose to the injector pipe and remove the
pipe.
FU-00170
17) Remove the fuel injectors.
(1) Remove the fuel injector securing clip.
FU-00279
20) Remove the fuel injector pipe.
21) Remove the bolt which installs the fuel pipes on
the intake manifold.
FU-00379
(2) Remove the fuel injector while lifting up the
fuel injector pipe.
FU-00518
22) Remove the fuel pipe assembly and pressure
regulator, from the intake manifold.
D: ASSEMBLY
1) Install the fuel pipe assembly and pressure regulator, etc. to the intake manifold.
2) Tighten the bolt which installs the fuel pipes on
the intake manifold.
Tightening torque:
6.4 N⋅m (0.7 kgf-m, 4.7 ft-lb)
FU-00276
18) Loosen the clamp which holds the front left side
fuel hose to the injector pipe and remove the pipe.
FU-00518
FU-00171
FU(H4SO)-21
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
3) Connect the right side fuel hose to the injector
pipe, and tighten the clamp screw.
NOTE:
Do not forget to install the fuel injector securing clip.
FU-00279
4) Install the fuel injector pipe.
5) Connect the left side fuel hose to the injector
pipe, and tighten the clamp screw.
FU-00379
7) Tighten the bolt which installs the injector pipe
on the intake manifold.
Tightening torque:
6.4 N⋅m (0.7 kgf-m, 4.7 ft-lb)
FU-00171
6) Install the fuel injectors.
FU-00283
NOTE:
Replace the O-rings with new ones.
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
(A)
(B)
(A)
FU-02097
FU-00284
(A) O-ring
(B) Fuel injector
FU(H4SO)-22
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
8) Tighten the two bolts which install the fuel pipe
assembly on the left side of intake manifold.
Tightening torque:
6.4 N⋅m (0.7 kgf-m, 4.7 ft-lb)
12) Connect the connectors to the fuel injectors
and purge control solenoid valve.
13) Hold the engine harness by harness band (A)
and harness bracket (B).
(A)
(A)
(A)
(B)
FU-00517
FU-00170
NOTE:
Do not use harness band on harnesses where they
are supposed to be protected by the fuel pipe protector.
14) Install the fuel pipe protector RH.
9) Install the purge control solenoid valve.
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
FU-00271
10) Connect the hoses to the purge control solenoid valve.
NOTE:
Connect the evaporation hose as shown in the figure.
FU-00267
15) Install the fuel pipe protector LH.
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
A
B
FU-00285
(A) To fuel pipe
(B) To intake manifold
FU-00266
11) Install the engine harness onto the intake manifold.
Tightening torque:
16 N⋅m (1.6 kgf-m, 11.8 ft-lb)
FU(H4SO)-23
Intake Manifold
FUEL INJECTION (FUEL SYSTEM)
16) Connect the pressure regulator vacuum hose
to the intake manifold.
E: INSPECTION
Make sure the fuel pipe and fuel hoses are not
cracked and that connections are tight.
FU-00265
17) Install the EGR valve. <Ref. to FU(H4SO)-34,
INSTALLATION, EGR Valve.>
18) Install the throttle body to the intake manifold.
<Ref. to FU(H4SO)-13, INSTALLATION, Throttle
Body.>
19) Install the ignition coil and ignitor assembly.
FU-00286
20) Connect the connector to the ignition coil and
ignitor assembly.
21) Install the engine ground terminal to the intake
manifold.
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
FU-00287
FU(H4SO)-24
Engine Coolant Temperature Sensor
FUEL INJECTION (FUEL SYSTEM)
4. Engine Coolant Temperature
Sensor
B: INSTALLATION
A: REMOVAL
Tightening torque:
18 N⋅m (1.8 kgf-m, 13.0 ft-lb)
1) Disconnect the ground cable from battery.
Install in the reverse order of removal.
FU-00009
2) Remove the air intake duct and air cleaner assembly. <Ref. to IN(H4SO)-7, REMOVAL, Air Intake Duct.> <Ref. to IN(H4SO)-6, REMOVAL, Air
Cleaner Case.>
3) Disconnect the connector from the engine coolant temperature sensor.
FU-00145
4) Remove the engine coolant temperature sensor.
FU(H4SO)-25
FU-00288
Crankshaft Position Sensor
FUEL INJECTION (FUEL SYSTEM)
5. Crankshaft Position Sensor
B: INSTALLATION
A: REMOVAL
Install in the reverse order of removal.
1) Disconnect the ground cable from battery.
Tightening torque:
T: 6.4 N⋅m (0.65 kgf-m, 4.7 ft-lb)
T
FU-00009
2) Remove the bolt which install crankshaft position
sensor to the cylinder block.
FU-00056
3) Remove the crankshaft position sensor, and disconnect the connector from it.
FU-00057
FU(H4SO)-26
FU-00058
Camshaft Position Sensor
FUEL INJECTION (FUEL SYSTEM)
6. Camshaft Position Sensor
6) Remove the camshaft position sensor itself.
A: REMOVAL
1) Disconnect the ground cable from battery.
FU-00179
B: INSTALLATION
FU-00009
2) Disconnect the connector from the camshaft position sensor.
Install in the reverse order of removal.
Tightening torque:
Camshaft position sensor support;
6.4 N⋅m (0.65 kgf-m, 4.7 ft-lb)
Camshaft position sensor;
6.4 N⋅m (0.65 kgf-m, 4.7 ft-lb)
FU-00147
3) Remove the bolt which installs camshaft position
sensor to the camshaft position sensor support.
FU-00177
4) Remove the bolt which installs camshaft position
sensor support to the camshaft cap LH.
FU-00178
5) Remove the camshaft position sensor and camshaft position sensor support as a unit.
FU(H4SO)-27
Knock Sensor
FUEL INJECTION (FUEL SYSTEM)
7. Knock Sensor
B: INSTALLATION
A: REMOVAL
1) Install the knock sensor to the cylinder block.
Tightening torque:
24 N⋅m (2.4 kgf-m, 17.4 ft-lb)
1) Disconnect the ground cable from battery.
NOTE:
The extraction area of the knock sensor cord must
be positioned at a 60° angle relative to the engine
rear.
(A)
FU-00009
2) Remove the air cleaner case. <Ref.
IN(H4SO)-6, REMOVAL, Air Cleaner Case.>
3) Disconnect the knock sensor connector.
to
60
FU-00413
(A) Front side
2) Connect the knock sensor connector.
FU-00062
4) Remove the knock sensor from the cylinder
block.
FU-00062
3) Install the air cleaner case.
<Ref. to IN(H4SO)-6, INSTALLATION, Air Cleaner
Case.>
4) Connect the battery ground cable to battery.
FU-00519
FU-00009
FU(H4SO)-28
Throttle Position Sensor
FUEL INJECTION (FUEL SYSTEM)
8. Throttle Position Sensor
B: INSTALLATION
A: REMOVAL
Install in the reverse order of removal.
1) Disconnect the ground cable from battery.
Tightening torque:
1.6 N⋅m (0.16 kgf-m, 1.2 ft-lb)
CAUTION:
When installing throttle position sensor, adjust
to the specified data.
FU-00009
2) Disconnect the connector from the throttle position sensor.
FU-00290
C: ADJUSTMENT
1) Turn the ignition switch to OFF.
2) Loosen the throttle position sensor holding
screws.
FU-00289
3) Remove the throttle position sensor holding
screws, and remove it.
FU-00291
FU-00290
3) When using voltage meter;
(1) Take out the ECM.
(2) Turn the ignition switch to ON.
(3) Adjust the throttle position sensor to the
proper position to allow the voltage signal to the
ECM to be in specification.
Connector & terminal / Specified voltage
(B135) No. 13 (+) — (B135) No. 19 (−) / 0.45 —
0.55 V
[Fully closed.]
B135
3 2 1
7 6 5 4
19 18 17 16 15 14 13 12 11 10 9 8
28 27
26 25 24
23 22
21 20
FU-00520
FU(H4SO)-29
Throttle Position Sensor
FUEL INJECTION (FUEL SYSTEM)
(4) Tighten the throttle position sensor holding
screws.
(4) Connect the Subaru Select Monitor to the
data link connector.
Tightening torque:
1.6 N⋅m (0.16 kgf-m, 1.2 ft-lb)
ME-00325
FU-00291
4) When using Subaru Select Monitor;
(1) Turn the ignition switch to OFF.
(2) Loosen the throttle position sensor holding
screws.
FU-00291
NOTE:
For detailed operation procedures, refer to the
SUBARU SELECT MONITOR OPERATION MANUAL.
(3) Insert the cartridge to the Subaru Select
Monitor.
5) Turn the ignition switch to ON, and the Subaru
Select Monitor switch to ON.
6) Select the {2. Each System Check} in Main
Menu.
7) Select the {Engine Control System} in Selection
Menu.
8) Select the {1. Current Data Display & Save} in
Engine Control System Diagnosis.
9) Select the {1.12 Data Display} in Data Display
Menu.
10) Adjust the throttle position sensor to the proper
position to match with the following specifications.
Condition: Throttle fully closed
Throttle opening angle 0.00%
Throttle sensor voltage 0.50 V
11) Tighten the throttle position sensor holding
screws.
Tightening torque:
1.6 N⋅m (0.16 kgf-m, 1.2 ft-lb)
FU-00291
ST
FU-00293
FU(H4SO)-30
Manifold Absolute Pressure Sensor
FUEL INJECTION (FUEL SYSTEM)
9. Manifold Absolute Pressure
Sensor
B: INSTALLATION
A: REMOVAL
Tightening torque:
1.6 N⋅m (0.16 kgf-m, 1.2 ft-lb)
1) Disconnect the ground cable from battery.
Install in the reverse order of removal.
FU-00295
FU-00009
2) Disconnect the connector from the manifold absolute pressure sensor.
NOTE:
Replace the O-ring with a new one.
FU-00294
3) Remove the manifold absolute pressure sensor.
FU-00295
FU(H4SO)-31
FU-00296
Intake Air Temperature Sensor
FUEL INJECTION (FUEL SYSTEM)
10.Intake Air Temperature Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
FU-00009
2) Disconnect the connector from the intake air
temperature sensor.
3) Remove the intake air temperature sensor from
air cleaner case.
FU-00297
B: INSTALLATION
Install in the reverse order of removal.
FU(H4SO)-32
Idle Air Control Solenoid Valve
FUEL INJECTION (FUEL SYSTEM)
11.Idle Air Control Solenoid
Valve
B: INSTALLATION
Install in the reverse order of removal.
A: REMOVAL
1) Disconnect the ground cable from battery.
NOTE:
Always use new gasket.
Tightening torque:
1.6 N⋅m (0.16 kgf-m, 1.2 ft-lb)
FU-00009
2) Disconnect the connector from the idle air control solenoid valve.
FU-00298
3) Remove the idle air control solenoid valve from
the throttle body.
FU-00299
FU(H4SO)-33
FU-00299
EGR Valve
FUEL INJECTION (FUEL SYSTEM)
12.EGR Valve
B: INSTALLATION
A: REMOVAL
Install in the reverse order of removal.
1) Disconnect the ground cable from battery.
NOTE:
For tightening torque, refer to “COMPONENT”. <Ref.
to FU(H4SO)-3, COMPONENT, General Description.>
FU-00009
2) Disconnect the connector from EGR valve.
FU-01246
3) Remove the EGR valve from intake manifold.
FU-01247
FU(H4SO)-34
Fuel Injector
FUEL INJECTION (FUEL SYSTEM)
13.Fuel Injector
A: REMOVAL
1. RH SIDE
1) Release the fuel pressure.
<Ref. to FU(H4SO)-47, RELEASING OF FUEL
PRESSURE, OPERATION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
6) Remove the power steering pump and reservoir
tank from the brackets.
(1) Remove the front side V-belt. <Ref. to
ME(H4SO)-43, REMOVAL, V-belt.>
(2) Remove the bolts which hold the power
steering pipes onto the intake manifold protector.
FU-00255
(3) Remove the bolts which install the power
steering pump to the bracket.
FU-00009
4) Remove the resonator chamber. <Ref. to
IN(H4SO)-8, REMOVAL, Resonator Chamber.>
5) Remove the spark plug cords from the spark
plugs (#1 and #3 cylinders).
FU-00139
(4) Disconnect the connector from the power
steering pump switch.
FU-00302
FU-00017
FU(H4SO)-35
Fuel Injector
FUEL INJECTION (FUEL SYSTEM)
(5) Remove the power steering tank from the
bracket by pulling it upwards.
9) Remove the bolts which holds the fuel injector
pipe to the intake manifold.
FU-00020
FU-00284
(6) Place the power steering pump and reservoir tank on the right side wheel apron.
FU-00304
FU-00021
7) Remove the fuel pipe protector RH.
10) Remove the fuel injector from the intake manifold.
(1) Remove the fuel injector securing clip.
FU-00305
FU-00267
8) Disconnect the connector from fuel injector.
(2) Remove the fuel injector while lifting up the
fuel injector pipe.
FU-00303
FU-00306
FU(H4SO)-36
Fuel Injector
FUEL INJECTION (FUEL SYSTEM)
2. LH SIDE
1) Release the fuel pressure. <Ref. to FU(H4SO)47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel flap lid, and remove the fuel filler
cap.
3) Disconnect the ground cable from battery.
8) Move the washer tank, and secure it away from
the working area.
FU-00192
9) Remove the spark plug cords from the spark
plugs (#2 and #4 cylinders).
FU-00009
4) Remove the two bolts which install the washer
tank on the body.
FU-00307
10) Remove the fuel pipe protector LH.
FU-00190
5) Disconnect the connector from the front window
washer motor.
6) Disconnect the connector from the rear gate
glass washer motor.
FU-00266
11) Disconnect the connector from the fuel injector.
FU-00191
7) Disconnect the rear window glass washer hose
from the washer motor, then plug the connection
with a suitable cap.
FU(H4SO)-37
FU-00308
Fuel Injector
FUEL INJECTION (FUEL SYSTEM)
12) Remove the bolt which holds the injector pipe
to the intake manifold.
B: INSTALLATION
1. RH SIDE
Install in the reverse order of removal.
NOTE:
Replace O-rings with new ones.
FU-00309
(A)
13) Remove the bolt which holds the fuel pipe on
the left side intake manifold.
(B)
(A)
FU-02097
(A) O-ring
(B) Fuel injector
Tightening torque:
5 N⋅m (0.5 kgf-m, 3.7 ft-lb)
FU-00170
14) Remove the fuel injector from the intake manifold.
(1) Remove the fuel injector securing clip.
FU-00314
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
FU-00312
(2) Remove the fuel injector while lifting up the
fuel injector pipe.
FU-00284
FU-00313
FU(H4SO)-38
Fuel Injector
FUEL INJECTION (FUEL SYSTEM)
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
Tightening torque:
5 N⋅m (0.5 kgf-m, 3.7 ft-lb)
FU-00267
Tightening torque:
33 N⋅m (3.4 kgf-m, 24.3 ft-lb)
FU-00170
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
IN-00044
FU-00309
Tightening torque:
19 N⋅m (1.9 kgf-m, 13.7 ft-lb)
2. LH SIDE
Install in the reverse order of removal.
CAUTION:
Replace O-rings with new ones.
(A)
FU-00266
(B)
(A)
FU-02097
(A) O-ring
(B) Fuel injector
FU(H4SO)-39
Front Oxygen (A/F) Sensor
FUEL INJECTION (FUEL SYSTEM)
14.Front Oxygen (A/F) Sensor
B: INSTALLATION
A: REMOVAL
1) Before installing front oxygen (A/F) sensor, apply the anti-seize compound only to the threaded
portion of front oxygen (A/F) sensor to make the
next removal easier.
1) Disconnect the ground cable from battery.
Anti-seize compound:
SS-30 JET LUBE
CAUTION:
Never apply anti-seize compound to protector
of front oxygen (A/F) sensor.
FU-00009
2) Disconnect the connector from engine hanger,
and then disconnect the connector from front oxygen (A/F) sensor.
FU-00196
2) Install the front oxygen (A/F) sensor.
Tightening torque:
21 N⋅m (2.1 kgf-m, 15.2 ft-lb)
EX-00029
3) Lift-up the vehicle.
4) Apply SUBARU CRC or its equivalent to the
threaded portion of front oxygen (A/F) sensor, and
leave it for one minute or more.
SUBARU CRC (Part No. 004301003)
5) Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the oxygen (A/F) sensor, wait
until exhaust pipe cools, otherwise it will damage exhaust pipe.
FU-00195
3) Lower the vehicle.
4) Connect the connector to front oxygen (A/F)
sensor, and then connect the connector to engine
hanger.
FU-00195
EX-00029
FU(H4SO)-40
Front Oxygen (A/F) Sensor
FUEL INJECTION (FUEL SYSTEM)
5) Connect the battery ground cable to battery.
FU-00009
FU(H4SO)-41
Rear Oxygen Sensor
FUEL INJECTION (FUEL SYSTEM)
15.Rear Oxygen Sensor
B: INSTALLATION
A: REMOVAL
1) Before installing rear oxygen sensor, apply the
anti-seize compound only to the threaded portion of
rear oxygen sensor to make the next removal easier.
1) Disconnect the ground cable from battery.
Anti-seize compound:
SS-30 JET LUBE
CAUTION:
Never apply anti-seize compound to protector
of rear oxygen sensor.
FU-00009
2) Lift-up the vehicle.
3) Disconnect the connector from the rear oxygen
sensor.
FU-00199
2) Install the rear oxygen sensor.
Tightening torque:
21 N⋅m (2.1 kgf-m, 15.2 ft-lb)
EX-00030
4) Apply SUBARU CRC or its equivalent to the
threaded portion of rear oxygen sensor, and leave
it for one minute or more.
SUBARU CRC (Part No. 004301003)
5) Remove the rear oxygen sensor.
CAUTION:
When removing the oxygen sensor, wait until
exhaust pipe cools, otherwise it will damage exhaust pipe.
FU-00198
3) Connect the connector to the rear oxygen sensor.
EX-00030
FU-00198
4) Lower the vehicle.
FU(H4SO)-42
Rear Oxygen Sensor
FUEL INJECTION (FUEL SYSTEM)
5) Connect the battery ground cable to battery.
FU-00009
FU(H4SO)-43
Engine Control Module (ECM)
FUEL INJECTION (FUEL SYSTEM)
16.Engine Control Module (ECM)
B: INSTALLATION
A: REMOVAL
Install in the reverse order of removal.
1) Disconnect the ground cable from battery.
CAUTION:
When replacing ECM, be careful not to use the
wrong spec. ECM to avoid any damage to the
fuel injection system.
Tightening torque:
5 N⋅m (0.51 kgf-m, 3.7 ft-lb)
FU-00009
2) Remove the lower inner trim of passenger side.
<Ref. to EI-44, REMOVAL, Lower Inner Trim.>
3) Detach the floor mat of front passenger seat.
4) Remove the protect cover.
FU-00315
5) Remove the nuts (A) which hold ECM to the
bracket.
6) Remove the clip (B) from the bracket.
(A)
(A)
(B)
FU-00316
7) Disconnect the ECM connectors and take out
the ECM.
FU(H4SO)-44
Main Relay
FUEL INJECTION (FUEL SYSTEM)
17.Main Relay
A: REMOVAL
1) Disconnect the ground cable from battery.
FU-00009
2) Remove the passenger’s side front side sill cover.
3) Remove the bolt which holds main bracket on
the body.
4) Disconnect the connectors from the main relay.
FU-00317
B: INSTALLATION
Install in the reverse order of removal.
FU(H4SO)-45
Fuel Pump Relay
FUEL INJECTION (FUEL SYSTEM)
18.Fuel Pump Relay
A: REMOVAL
1) Disconnect the ground cable from battery.
FU-00009
2) Remove the passenger’s side front side sill cover.
3) Remove the bolt which holds fuel pump relay
bracket on the body.
4) Disconnect the connector from the fuel pump.
FU-00262
5) Remove the fuel pump relay from the mounting
bracket.
B: INSTALLATION
Install in the reverse order of removal.
FU(H4SO)-46
Fuel
FUEL INJECTION (FUEL SYSTEM)
19.Fuel
5) Drain fuel from the fuel tank.
Set a container under the vehicle and remove the
drain plug from fuel tank.
A: OPERATION
1. RELEASING OF FUEL PRESSURE
WARNING:
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel.
1) Disconnect the connector from fuel pump relay.
FU-00089
6) Tighten the fuel drain plug.
Tightening torque:
26 N⋅m (2.7 kgf-m, 19.2 ft-lb)
FU-00262
2) Start the engine and run it until it stalls.
3) After the engine stalls, crank it for 5 more seconds.
4) Turn the ignition switch to OFF.
2. DRAINING FUEL
WARNING:
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel.
1) Set the vehicle on a lift.
2) Disconnect the ground cable from battery.
FU-00009
3) Open the fuel filler flap lid and remove fuel filler
cap.
4) Lift-up the vehicle.
FU(H4SO)-47
FU-00089
Fuel Tank
FUEL INJECTION (FUEL SYSTEM)
20.Fuel Tank
9) Loosen the clamp and disconnect the fuel filler
hose and air vent hose from fuel filler pipe.
A: REMOVAL
WARNING:
• Place “NO FIRE” signs near the working area.
• Be careful not to spill fuel.
1) Set the vehicle on a lift.
2) Release the fuel pressure. <Ref. to FU(H4SO)47, RELEASING OF FUEL PRESSURE, OPERATION, Fuel.>
3) Drain fuel from the fuel tank. <Ref. to FU(H4SO)47, DRAINING FUEL, OPERATION, Fuel.>
4) Remove the rear seat.
5) Disconnect the connector (A) of fuel tank cord to
rear harness.
6) Push the grommet (B) which holds fuel tank cord
on floor panel into under the body.
FU-00092
10) Move the clips, and disconnect quick connector. <Ref. to FU(H4SO)-63, REMOVAL, Fuel Delivery, Return and Evaporation Lines.>
11) Disconnect the fuel hoses.
(B)
(A)
7) Remove the rear crossmember. <Ref. to RS-18,
REMOVAL, Rear Crossmember.>
8) Disconnect the two-way valve hose (A) from
two-way valve and disconnect the canister hose (B)
from canister.
(A)
FU-00093
FU-00090
12) Support the fuel tank with transmission jack,
and remove the bolts from bands and dismount fuel
tank from the vehicle.
WARNING:
A helper is required to perform this work.
(B)
FU-00091
FU(H4SO)-48
FU-00411
Fuel Tank
FUEL INJECTION (FUEL SYSTEM)
B: INSTALLATION
1) Support the fuel tank with transmission jack and
push the fuel tank harness into access hole with
grommet.
2) Set the fuel tank and temporarily tighten the
bolts of fuel tank bands.
5) Connect the fuel hoses, and secure them with
clips and quick connector. <Ref. to FU(H4SO)-64,
INSTALLATION, Fuel Delivery, Return and Evaporation Lines.>
WARNING:
A helper is required to perform this work.
FU-00093
6) Tighten the band mounting bolts.
Tightening torque:
33 N⋅m (3.4 kgf-m, 24.3 ft-lb)
FU-00411
3) Connect the two-way valve hose (A) to two-way
valve and connect the canister hose (B) to canister.
(A)
(B)
FU-00411
FU-00091
4) Connect the fuel filler hose and air vent hose.
7) Install the rear crossmember. <Ref. to RS-18,
INSTALLATION, Rear Crossmember.>
8) Connect the connector (A) to fuel tank cord and
plug the service hole with grommet (B).
(B)
(A)
FU-00092
9) Set the rear seat and floor mat.
FU(H4SO)-49
FU-00090
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