Subaru Legacy (2005 year). Service manual — part 250
FU(H4DOTC)-25
FUEL INJECTION (FUEL SYSTEMS)
Knock Sensor
7. Knock Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Remove the intercooler. <Ref. to IN(H4DOTC)-
12, REMOVAL, Intercooler.>
4) Disconnect the knock sensor connector.
5) Remove the knock sensor from cylinder block.
B: INSTALLATION
1) Install the knock sensor to cylinder block.
NOTE:
Extraction area of knock sensor cord must be posi-
tioned at a 60
° angle relative to the engine rear.
Tightening torque:
24 N
⋅
m (2.4 kgf-m, 17.7 ft-lb)
2) Connect the knock sensor connector.
3) Install the intercooler.
<Ref. to IN(H4DOTC)-12, INSTALLATION, Inter-
cooler.>
4) Connect the ground cable to battery.
5) Install the collector cover.
IN-00203
FU-01164
FU-00519
(A) Front side
FU-00413
(A)
60
FU-01164
IN-00203
FU(H4DOTC)-26
FUEL INJECTION (FUEL SYSTEMS)
Throttle Position Sensor
8. Throttle Position Sensor
A: SPECIFICATION
Throttle body is a non-disassembled part, so do not
remove the throttle position sensor from throttle
body.
Refer to “Throttle Body” for removal and installation
procedures. <Ref. to FU(H4DOTC)-11, REMOV-
AL, Throttle Body.> <Ref. to FU(H4DOTC)-11, IN-
STALLATION, Throttle Body.>
FU(H4DOTC)-27
FUEL INJECTION (FUEL SYSTEMS)
Mass Air Flow and Intake Air Temperature Sensor
9. Mass Air Flow and Intake Air
Temperature Sensor
A: REMOVAL
1) Disconnect the ground cable from battery.
2) Disconnect the connector from mass air flow and
intake air temperature sensor.
3) Remove the mass air flow and intake air temper-
ature sensor.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
1 N
⋅
m (0.1 kgf-m, 0.7 ft-lb)
IN-00203
FU-01187
FU(H4DOTC)-28
FUEL INJECTION (FUEL SYSTEMS)
Manifold Absolute Pressure Sensor
10.Manifold Absolute Pressure
Sensor
A: REMOVAL
1) Remove the collector cover.
2) Disconnect the ground cable from battery.
3) Disconnect the connector from manifold abso-
lute pressure sensor (A), and remove the filter as-
sembly (B) from intake manifold.
4) Remove the manifold absolute pressure sensor
from solenoid valve bracket.
B: INSTALLATION
Install in the reverse order of removal.
Tightening torque:
6.5 N
⋅
m (0.66 kgf-m, 4.8 ft-lb)
IN-00203
(A)
FU-01188
(B)
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