sensor SUBARU LEGACY 1999 Service Owners Manual

(2) Remove resonator chamber.
B2M2306
5) Remove component parts of air intake system.
(Except California spec. vehicles)
(1) Disconnect connector from mass air flow
sensor.
B2M2018
(2) Remove air intake duct and air cleaner
upper cover as a unit, and remove air cleaner
element.
B2M2020
6) Remove spark plug cords from spark plugs (#1
and #3 cylinders).
B2M2014
7) Remove power steering pump from bracket.
(1) Remove V-belt covers.
B2M2307
(2) Loosen lock bolt and slider bolt, and remove
power steering pump drive V-belt.
B2M2308
(3) Remove bolts which secure power steering
pipe brackets to intake manifold.
B2M2309
(4) Remove bolts which install power steering
pump to bracket.
B2M2310
80
2-7[W14A1]SERVICE PROCEDURE
14. Fuel Injector

19. Knock Sensor
A: REMOVAL
1. 2200 cc MODEL
1) Disconnect battery ground cable from battery
ground terminal.
B2M1723
2) Remove air cleaner assembly.
(California spec. vehicles only)

B2M2320
3) Remove air intake chamber.
(Except California spec. vehicles)

B2M2301
4) Remove band which holds knock sensor
harness, and disconnect connector from knock
sensor.
B2M2327A
5) Remove knock sensor from cylinder block.
B2M2316
2. 2500 cc MODEL
1) Disconnect battery ground cable from battery
ground terminal.
B2M1723
90
2-7[W19A1]SERVICE PROCEDURE
19. Knock Sensor

2) Remove air intake chamber.

B2M1683
3) Remove operating cylinder. (MT vehicles only)

B2M1179D
NOTE:
Place the operating cylinder where it will not inter-
fere the work in process.
B2M1684
4) Disconnect knock sensor connector.
B2M1686
5) Remove knock sensor from cylinder block.
B2M1682
B: INSTALLATION
1. 2200 cc MODEL
1) Install knock sensor to cylinder block.
NOTE:
The knock sensor cord which is extracted from the
sensor must be positioned at a 45É angle against
the rear side of the engine.
Tightening torque:
23.5
±2.9 N´m (2.4±0.3 kg-m, 17.3±2.1 ft-lb)
B2M2316
2) Connect knock sensor connector and hold
knock sensor harness with band.
3) Install air intake chamber. (Except California
spec. vehicles)
B2M2301
91
[W19B1]2-7SERVICE PROCEDURE
19. Knock Sensor

4) Install air cleaner assembly. (California spec.
vehicles only)
B2M2320
5) Connect battery ground cable to battery ground
terminal.
B2M1723
2. 2500 cc MODEL
1) Install knock sensor to cylinder block.
NOTE:
The knock sensor cord which is extracted from the
sensor must be positioned at a 45É angle against
the rear side of the engine.
Tightening torque:
23.5
±2.9 N´m (2.4±0.3 kg-m, 17.3±2.1 ft-lb)
B2M1682A
2) Connect knock sensor connector.
B2M1686
NOTE:
The knock sensor connector must be connected
behind the engine coolant hose within the engine
components.
B2M1688A
B2M1689A
92
2-7[W19B2]SERVICE PROCEDURE
19. Knock Sensor

3) Install operating cylinder. (MT vehicles only)
NOTE:
Apply grease to contact point of release lever and
operating cylinder rod.
Tightening torque:
37
±3 N´m (3.8±0.3 kg-m, 27.3±2.2 ft-lb)
B2M1179E
4) Install air intake chamber. [W18A0].>
B2M1683
5) Connect battery ground cable to battery ground
terminal.
B2M1723
20. Intake Manifold Pressure
Sensor (2200 cc California
Spec. Vehicles only)
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Remove idle air control solenoid valve. 2-7 [W12A1].>
B2M2364
3) Disconnect connector from intake manifold
pressure sensor.
B2M2372
93
[W20A0]2-7SERVICE PROCEDURE
20. Intake Manifold Pressure Sensor (2200 cc California Spec. Vehicles only)

3) Install operating cylinder. (MT vehicles only)
NOTE:
Apply grease to contact point of release lever and
operating cylinder rod.
Tightening torque:
37
±3 N´m (3.8±0.3 kg-m, 27.3±2.2 ft-lb)
B2M1179E
4) Install air intake chamber. [W18A0].>
B2M1683
5) Connect battery ground cable to battery ground
terminal.
B2M1723
20. Intake Manifold Pressure
Sensor (2200 cc California
Spec. Vehicles only)
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Remove idle air control solenoid valve. 2-7 [W12A1].>
B2M2364
3) Disconnect connector from intake manifold
pressure sensor.
B2M2372
93
[W20A0]2-7SERVICE PROCEDURE
20. Intake Manifold Pressure Sensor (2200 cc California Spec. Vehicles only)

4) Remove intake manifold pressure sensor from
throttle body.
B2M2373
5) Installation is in the reverse order of removal.
CAUTION:
Replace gaskets for intake air pressure sensor
and idle air control solenoid valve with new
ones.
Tightening torque:
2.2
±0.2 N´m (0.22±0.02 kg-m, 1.6±0.1 ft-lb)
B2M2373
21. Intake Air Temperature
Sensor (2200 cc California
Spec. Vehicles only)
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Disconnect connector from intake air tempera-
ture sensor.
B2M2285
3) Remove intake air temperature sensor from air
cleaner case.
B2M2374
4) Installation is in the reverse order of removal.
94
2-7[W21A0]SERVICE PROCEDURE
21. Intake Air Temperature Sensor (2200 cc California Spec. Vehicles only)

4) Remove intake manifold pressure sensor from
throttle body.
B2M2373
5) Installation is in the reverse order of removal.
CAUTION:
Replace gaskets for intake air pressure sensor
and idle air control solenoid valve with new
ones.
Tightening torque:
2.2
±0.2 N´m (0.22±0.02 kg-m, 1.6±0.1 ft-lb)
B2M2373
21. Intake Air Temperature
Sensor (2200 cc California
Spec. Vehicles only)
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
B2M1723
2) Disconnect connector from intake air tempera-
ture sensor.
B2M2285
3) Remove intake air temperature sensor from air
cleaner case.
B2M2374
4) Installation is in the reverse order of removal.
94
2-7[W21A0]SERVICE PROCEDURE
21. Intake Air Temperature Sensor (2200 cc California Spec. Vehicles only)

(1) Heat sealed cover
(2) Fuel tank band
(3) Protector LH
(4) Protector RH
(5) Fuel tank
(6) Canister hose A
(7) Clamp
(8) Fuel pump gasket
(9) Main fuel meter unit
(10) Fuel pump ASSY
(11) Fuel cut valve gasket
(12) Fuel cut valve
(13) Evaporation hose A
(14) Clip
(15) Joint pipe(16) Evaporation hose C
(17) Evaporation hose B
(18) Evaporation hose D
(19) Evaporation hose E
(20) Evaporation pipe ASSY
(21) Canister hose B
(22) Jet pump hose A
(23) Fuel delivery hose A
(24) Fuel return hose A
(25) Clamp
(26) Jet pump hose B
(27) Fuel pipe ASSY
(28) Fuel delivery hose B
(29) Fuel return hose B
(30) Evaporation hose F(31) Fuel sub meter gasket
(32) Jet pump filter
(33) Fuel sub meter unit
(34) Protector cover
(35) Vent valve hose
(36) Vent valve
(37) Fuel tank pressure sensor
(38) Fuel tank pressure sensor hose
(39) Vent valve gasket
Tightening torque: N´m (kg-m, ft-lb)
T1:
4.4±1.5 (0.45±0.15, 3.3±1.1)
T2:7.4±2.0 (0.75±0.2, 5.4±1.4)
T3:33±10 (3.4±1.0, 25±7)
4
2-8[C100]COMPONENT PARTS
1. Fuel Tank

(1) Upper front exhaust pipe cover
CTR
(2) Lower front exhaust pipe cover
CTR
(3) Band RH
(4) Band LH
(5) Upper front exhaust pipe cover
LH
(6) Lower front exhaust pipe cover
LH
(7) Front exhaust pipe
(8) Lower front exhaust pipe cover
RHUpper front exhaust pipe
cover RH
(9) Gasket
(10) Spring(11) Rear exhaust pipe
(12) Self-locking nut
(13) Gasket
(14) Gasket
(15) Muffler
(16) Cushion rubber
(17) Clamp
(18) Upper center exhaust pipe cover
(19) Center exhaust pipe
(20) Clamp B
(21) Upper rear catalytic converter
cover
(22) Lower rear catalytic converter
cover
(23) Gasket
(24) Front oxygen sensor(25) Rear oxygen sensor
(26) Front catalytic converter
(27) Front catalytic converterLower
front catalytic converter cover
(28) Upper front catalytic converter
cover
Tightening torque: N´m (kg-m, ft-lb)
T1:
13±3 (1.3±0.3, 9.4±2.2)
T2:18±5 (1.8±0.5, 13.0±3.6)
T3:30±5 (3.1±0.5, 22.4±3.6)
T4:35±5 (3.6±0.5, 26.0±3.6)
T5:48±5 (4.9±0.5, 35.4±3.6)
3
[C1A0]2-9COMPONENT PARTS
1. Exhaust System