sensor SUBARU LEGACY 1996 Service Repair Manual

B2M0154
1. Air Cleaner and Air Intake Duct
A: REMOVAL AND INSTALLATION
1) Loosen clamp which connect air intake duct to throttle
body and mass air flow sensor.
2) Disconnect blow-by hoses from air intake duct.
3) Remove air intake duct.
G2M0305
4) Disconnect connector from mass air flow sensor.
G2M0390
5) Remove clips of air cleaner upper cover.
6) Remove air cleaner element.
G2M0391
7) Remove air cleaner lower case.
8) Installation is in the reverse order of removal.
5
2-7SERVICE PROCEDURE
1. Air Cleaner and Air Intake Duct

B2M0154
2. Mass Air Flow Sensor
A: REMOVAL AND INSTALLATION
1) Remove air intake duct.
G2M0305
2) Disconnect connector from mass air flow sensor.
G2M0390
3) Remove air cleaner upper cover.
G2M0393
4) Remove mass air flow sensor from air cleaner upper
cover.
5) Installation is in the reverse order of removal.
Tightening torque:
7.4±2.0 N⋅m (0.75±0.2 kg-m, 5.4±1.4 ft-lb)
6
2-7SERVICE PROCEDURE
2. Mass Air Flow Sensor

B2M0154
3. Throttle Body
A: REMOVAL AND INSTALLATION
1) Remove air intake duct.
G2M0280
2) Disconnect accelerator cable
1.
3) Disconnect cruise control cable

2. (With cruise control
model)
B2M0155
4) Disconnect connector from throttle position sensor.
B2M0156
5) Disconnect engine coolant hoses from throttle body.
B2M0157
6) Remove bolts which install throttle body to intake mani-
fold.
7) Installation is in the reverse order of removal.
CAUTION:
Always use a new gasket.
Tightening torque:
22±2 N⋅m (2.2±0.2 kg-m, 15.9±1.4 ft-lb)
7
2-7SERVICE PROCEDURE
3. Throttle Body

B2M0154
4. Intake Manifold
A: REMOVAL
1) Release fuel pressure.
2) Disconnect connector from mass air flow sensor.
3) Remove air intake duct, air cleaner upper cover and air
cleaner element.
G2M0280
4) Disconnect accelerator cable
1.
5) Disconnect cruise control cable

2. (With cruise control
model)
B2M0334
6) Disconnect hoses from pressure sources switching
solenoid valve.
G2M0286
7) Remove power steering pump from bracket.
(1) Loosen lock bolt and slider bolt, and remove front
side V-belt.
B2M0340
(2) Remove pipe with bracket from intake manifold.
8
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0342
12) Disconnect brake booster hose.
B2M0343
13) Remove EGR pipe.
G2M0370
14) Disconnect canister hose from pipe.
B2M0019
15) Disconnect engine harness connectors from bulkhead
harness connectors.
B2M0345A
16) Disconnect connectors from engine coolant tempera-
ture sensor

1and thermometer
2.
10
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0346
17) Disconnect connector from knock sensor.
G2M0416
18) Disconnect connector from camshaft position sensor.
G2M0408
19) Disconnect connector from crankshaft position sensor.
G2M0091
20) Disconnect connector from oil pressure switch.
G2M0296
21) Disconnect fuel hoses from pipes.
WARNING:
Catch fuel from hoses in a container.
11
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0159
22) Remove bolts which hold intake manifold onto cylinder
heads.
B2M0160
23) Remove intake manifold.
B2M0757A
B: DISASSEMBLY
1) Disconnect engine ground terminal from intake mani-
fold.
B2M0347A
2) Disconnect connectors from throttle position sensor,
ignition coil, fuel injectors, idle air control solenoid valve,
purge control solenoid valve and EGR solenoid valve.
3) Remove engine harness from intake manifold.


1EGR solenoid valve


2Throttle position sensor


3Idle air control solenoid valve


4Purge control solenoid valve


5Harness band
H2M1247
4) Remove idle air control solenoid valve from intake
manifold.
12
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0347A
5) Install engine harness onto intake manifold.
6) Connect connectors to throttle position sensor, ignition
coil, fuel injectors, idle air control solenoid valve, purge
control solenoid valve and EGR solenoid valve.


1EGR solenoid valve


2Throttle position sensor


3Idle air control solenoid valve


4Purge control solenoid valve


5Harness band
B2M0757A
7) Connect engine ground terminal to intake manifold.
B2M0159
D: INSTALLATION
1) Install intake manifold onto cylinder heads.
CAUTION:
Always use new gaskets.
Tightening torque:
25±2 N⋅m (2.5±0.2 kg-m, 18.1±1.4 ft-lb)
G2M0296
2) Connect fuel hoses.
G2M0091
3) Connect connector to oil pressure switch.
14
2-7SERVICE PROCEDURE
4. Intake Manifold

G2M0408
4) Connect connector to crankshaft position sensor.
G2M0416
5) Connect connector to camshaft position sensor.
B2M0346
6) Connect connector to knock sensor.
B2M0345A
7) Connect connectors to engine coolant temperature sen-
sor

1and thermometer
2.
B2M0019
8) Connect engine harness connector to bulkhead har-
ness connectors.
15
2-7SERVICE PROCEDURE
4. Intake Manifold

B2M0154
18) Install air cleaner element, air cleaner upper cover and
air intake duct.
19) Connect connector to mass air flow sensor.
B2M0154
5. Engine Coolant Temperature Sensor
A: REMOVAL AND INSTALLATION
1) Remove air intake duct.
G2M0407
2) Disconnect connector from engine coolant temperature
sensor.
3) Remove engine coolant temperature sensor.
G2M0407
4) Installation is in the reverse order of removal.
Tightening torque:
25±3 N⋅m (2.5±0.3 kg-m, 18.1±2.2 ft-lb)
G2M0408
6. Crankshaft Position Sensor
A: REMOVAL AND INSTALLATION
1) Remove bolt which install crankshaft position sensor to
cylinder block.
18
2-7SERVICE PROCEDURE
4. Intake Manifold - 6. Crankshaft Position Sensor