SUBARU FORESTER 2004 Service Repair Manual

FU(H4DOTC 2.5)-31
FUEL INJECTION (FUEL SYSTEM)
Manifold Absolute Pressure Sensor
9. Manifold Absolute Pressure
Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the connectors from manifold abso-
lute pressure sensor.
3) Remove the manifold absolute pressure sensor
from the throttle body.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Replace the O-rings for the manifold absolute pres-
sure sensor with new ones.
Tightening torque:
1.6 N·m (0.16 kgf-m, 1.2 ft-lb)
FU-00009
FU-01077

FU(H4DOTC 2.5)-32
FUEL INJECTION (FUEL SYSTEM)
Fuel Injector
10.Fuel Injector
A: REMOVAL
1. RH SIDE
1) Release the fuel pressure.
FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the ground cable from battery.
4) Remove the fuel pipe protector RH.
5) Disconnect the connector from the fuel injector.
6) Remove the screw and remove the fuel injector.
2. LH SIDE
1) Release the fuel pressure.
FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the ground cable from battery.
4) Remove the intake manifold.
Manifold.>
5) Disconnect the connector from the fuel injector.
6) Remove the screw and remove the fuel injector.
B: INSTALLATION
1. RH SIDE
Install in the reverse order of removal.
NOTE:
Replace the O-rings with new ones.
2. LH SIDE
Install in the reverse order of removal.
NOTE:
Replace the O-rings with new ones.
FU-00009
FU-01040
FU-01055
FU-00009
FU-01056

FU(H4DOTC 2.5)-33
FUEL INJECTION (FUEL SYSTEM)
Tumble Generator Valve Assembly
11.Tumble Generator Valve As-
sembly
A: REMOVAL
1) Release the fuel pressure.
FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the ground cable from battery.
4) Remove the intake manifold.
Manifold.>
5) Disconnect the connector from the tumble gen-
erator valve sensor.
6) Disconnect the connector from the tumble gen-
erator valve actuator.
7) Remove the fuel injector.
jector.>8) Remove the tumble generator valve body from
the intake manifold.
B: INSTALLATION
Install in the reverse order of removal.
NOTE:
Always use new gaskets.
Tightening torque:
8.25 N·m (0.84 kgf-m, 6.1 ft-lb)
FU-00009
FU-00617
FU-00616
FU-00053
FU-00053

FU(H4DOTC 2.5)-34
FUEL INJECTION (FUEL SYSTEM)
Tumble Generator Valve Actuator
12.Tumble Generator Valve Ac-
tuator
A: REMOVAL
1. RH SIDE
1) Release the fuel pressure.
FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the ground cable from battery.
4) Remove the intake manifold.
Manifold.>
5) Disconnect the connector from tumble generator
valve actuator RH.
6) Remove the tumble generator valve actuator RH.
2. LH SIDE
1) Release the fuel pressure.
FUEL PRESSURE, OPERATION, Fuel.>
2) Open the fuel filler flap lid and remove the fuel
filler cap.
3) Disconnect the ground cable from battery.
4) Disconnect the connector from tumble generator
valve actuator LH.
5) Remove the tumble generator valve actuator LH.
B: INSTALLATION
1. RH SIDE
Install in the reverse order of removal.
2. LH SIDE
Install in the reverse order of removal.
FU-00009
FU-00621
FU-00009
FU-00622

FU(H4DOTC 2.5)-35
FUEL INJECTION (FUEL SYSTEM)
Wastegate Control Solenoid Valve
13.Wastegate Control Solenoid
Valve
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the engine harness connector (A)
from bracket.
3) Disconnect the connector (B) from wastegate
control solenoid valve.
4) Remove the bracket from body.
5) Disconnect the pressure hoses (C) from waste-
gate control solenoid valve.6) Remove the wastegate control solenoid valve
from bracket.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
6.5 N·m (0.66 kgf-m, 4.8 ft-lb)FU-00009
FU-00366
(A) (B)
FU-00367
(C)
FU-00368
FU-00368

FU(H4DOTC 2.5)-36
FUEL INJECTION (FUEL SYSTEM)
Front Oxygen (A/F) Sensor
14.Front Oxygen (A/F) Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the connector from the front oxygen
(A/F) sensor.
3) Disconnect the engine harness fixed by clip (A)
from the bracket (B).
4) Remove the front right side wheel.
5) Lift-up the vehicle.
6) Remove the service hole cover.7) 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)
8) Remove the front oxygen (A/F) sensor.
CAUTION:
When removing the front oxygen (A/F) sensor,
wait until exhaust pipe cools; otherwise, it will
damage exhaust pipe.
FU-00009
FU-01229
FU-00078
(A)(B)
FU-00783
FU-00080

FU(H4DOTC 2.5)-37
FUEL INJECTION (FUEL SYSTEM)
Front Oxygen (A/F) Sensor
B: INSTALLATION
1) Before installing front oxygen (A/F) sensor, ap-
ply anti-seize compound only to the threaded por-
tion of front oxygen (A/F) sensor to make the next
removal easier.
Anti-seize compound:
SS-30 JET LUBE
CAUTION:
Never apply anti-seize compound to protector
of front oxygen (A/F) sensor.
2) Install the front oxygen (A/F) sensor.
Tightening torque:
30 N·m (3.1 kgf-m, 22.1 ft-lb)
3) Install the service hole cover.
4) Lower the vehicle.
5) Install the front right side wheel.
6) Connect the engine harness to the bracket (B)
using clips (A).7) Connect the connector of front oxygen (A/F)
sensor.
8) Connect the battery ground cable to battery.
FU-00080
FU-00783
FU-00078
(A)(B)
FU-01229
FU-00009

FU(H4DOTC 2.5)-38
FUEL INJECTION (FUEL SYSTEM)
Rear Oxygen Sensor
15.Rear Oxygen Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Lift-up the vehicle.
3) Disconnect the connector from the rear oxygen
sensor.
4) Remove the clip by pulling out from the upper
side of crossmember.
 AT model
 MT model5) 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)
6) Remove the rear oxygen sensor.
CAUTION:
When removing the oxygen sensor, wait until
exhaust pipe cools; otherwise, it will damage
exhaust pipe.
B: INSTALLATION
1) Before installing rear oxygen sensor, apply anti-
seize compound only to the threaded portion of rear
oxygen sensor to make the next removal easier.
CAUTION:
Never apply anti-seize compound to protector
of rear oxygen sensor.
Anti-seize compound:
JET LUBE SS-30
2) Install the rear oxygen sensor.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
FU-00009
FU-00081
FU-01311
FU-01312
FU-00371
FU-00371

FU(H4DOTC 2.5)-39
FUEL INJECTION (FUEL SYSTEM)
Rear Oxygen Sensor
3) Connect the connector to the rear oxygen sensor.
4) Connect the clip to the crossmember.
 AT model
 MT model
5) Lower the vehicle.
6) Connect the battery ground cable to battery.
FU-00081
FU-01311
FU-01312
FU-00009

FU(H4DOTC 2.5)-40
FUEL INJECTION (FUEL SYSTEM)
Exhaust Temperature Sensor
16.Exhaust Temperature Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Remove the joint pipe. 13, REMOVAL, Joint Pipe.>
3) Apply SUBARU CRC or its equivalent to the thread-
ed portion of exhaust temperature sensor, and leave it
for 1 minute or more.
SUBARU CRC (Part No. 004301003)
4) Remove the exhaust temperature sensor.
CAUTION:
When removing the exhaust temperature sen-
sor, wait until the exhaust pipe cools, otherwise
it will damage exhaust pipe.
B: INSTALLATION
1) Before installing the exhaust temperature sen-
sor, apply anti-seize compound only to the thread-
ed portion of exhaust temperature sensor to make
the next removal easier.
CAUTION:
Never apply anti-seize compound to the protec-
tor of exhaust temperature sensor.
Anti-seize compound:
SS-30 JET LUBE
2) Install the exhaust temperature sensor.
NOTE:
Align the harness (A) of exhaust temperature sen-
sor to the marking (B) of joint pipe, and tighten the
screws.
Tightening torque:
21 N·m (2.1 kgf-m, 15.2 ft-lb)
3) Install the joint pipe. INSTALLATION, Joint Pipe.>
4) Connect the battery ground cable to battery.
FU-00009
FU-00372
FU-01018
(A)
(B)
FU-00009