engine SUBARU LEGACY 1996 Service Repair Manual
[x] Cancel search | Manufacturer: SUBARU, Model Year: 1996, Model line: LEGACY, Model: SUBARU LEGACY 1996Pages: 2890, PDF Size: 61.9 MB
Page 650 of 2890
B2M0164
12. Idle Air Control Solenoid Valve
A: REMOVAL AND INSTALLATION
1) Disconnect connector from idle air control solenoid
valve.
B2M0165A
2) Disconnect engine coolant hoses1from idle air con-
trol solenoid valve.
3) Disconnect air by-pass hose
2from idle air control
solenoid valve.
B2M0166
4) Remove idle air control solenoid valve from throttle
body.
5) Installation is in the reverse order of removal.
CAUTION:
Replace gasket with a new one.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
B2M0357
B: CLEANING
1) Start and warm-up the engine until radiator fan oper-
ates.
2) Hold throttle valve so that engine speed is at 2,000 rpm.
B2M0359
3) Disconnect by-pass hose from idle air control solenoid
valve.
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2-7SERVICE PROCEDURE
12. Idle Air Control Solenoid Valve
Page 651 of 2890
B2M0358
4) Slowly pour one can (16 oz) of cleaner into by-pass air
hole.
Cleaner:
Part No. 1050002 GM Top Engine Cleaner
Part No. X66-A AC Delco Carburetor Tune-up
Conditioner
5) Leave the engine running for five minutes.
NOTE:
White smoke comes out of the muffler until the cleaner is
used up.
6) Stop the engine.
B2M0359
7) Release the throttle valve.
8) Connect by-pass hose to idle air control solenoid valve.
G2M0096
9) Check duty ratio of idle air control solenoid valve with
Subaru Select Monitor.
(1) Connect Subaru Select Monitor to the data link con-
nector.
(2) Start the engine and turn Subaru Select Monitor
switch to ON.
(3) Select mode“F12”.
(4) Make sure duty ratio on radiator fan and electric
load is OFF.
Specified data: 25—40%
B2M0361
13. Pressure Sources Switching
Solenoid Valve (AT model)
A: REMOVAL AND INSTALLATION
1) Disconnect connector from pressure sources switching
solenoid valve.
2) Disconnect hoses from pressure sources switching
solenoid valve.
27
2-7SERVICE PROCEDURE
12. Idle Air Control Solenoid Valve - 13. Pressure Sources Switching Solenoid Valve (AT model)
Page 652 of 2890
B2M0358
4) Slowly pour one can (16 oz) of cleaner into by-pass air
hole.
Cleaner:
Part No. 1050002 GM Top Engine Cleaner
Part No. X66-A AC Delco Carburetor Tune-up
Conditioner
5) Leave the engine running for five minutes.
NOTE:
White smoke comes out of the muffler until the cleaner is
used up.
6) Stop the engine.
B2M0359
7) Release the throttle valve.
8) Connect by-pass hose to idle air control solenoid valve.
G2M0096
9) Check duty ratio of idle air control solenoid valve with
Subaru Select Monitor.
(1) Connect Subaru Select Monitor to the data link con-
nector.
(2) Start the engine and turn Subaru Select Monitor
switch to ON.
(3) Select mode“F12”.
(4) Make sure duty ratio on radiator fan and electric
load is OFF.
Specified data: 25—40%
B2M0361
13. Pressure Sources Switching
Solenoid Valve (AT model)
A: REMOVAL AND INSTALLATION
1) Disconnect connector from pressure sources switching
solenoid valve.
2) Disconnect hoses from pressure sources switching
solenoid valve.
27
2-7SERVICE PROCEDURE
12. Idle Air Control Solenoid Valve - 13. Pressure Sources Switching Solenoid Valve (AT model)
Page 653 of 2890
B2M0362
3) Remove pressure sources switching solenoid valve
from bracket.
4) Installation is in the reverse order of removal.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
G2M0398
14. Fuel Injector
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Disconnect connector from fuel injector.
G2M0431
3) Remove fuel injector from fuel pipe assembly.
B2M0169A
4) Installation is in the reverse order of removal.
CAUTION:
Replace O-rings and insulator.
Tightening torque:
T: 3.4±0.5 N⋅m (0.35±0.05 kg-m, 2.5±0.4 ft-lb)
1O-ring B
2O-ring A
3Fuel injector
4Insulator
5Fuel injector cup
G6M0095
15. Engine Control Module
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
28
2-7SERVICE PROCEDURE
13. Pressure Sources Switching Solenoid Valve (AT model) - 15. Engine Control Module
Page 654 of 2890
B2M0362
3) Remove pressure sources switching solenoid valve
from bracket.
4) Installation is in the reverse order of removal.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
G2M0398
14. Fuel Injector
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Disconnect connector from fuel injector.
G2M0431
3) Remove fuel injector from fuel pipe assembly.
B2M0169A
4) Installation is in the reverse order of removal.
CAUTION:
Replace O-rings and insulator.
Tightening torque:
T: 3.4±0.5 N⋅m (0.35±0.05 kg-m, 2.5±0.4 ft-lb)
1O-ring B
2O-ring A
3Fuel injector
4Insulator
5Fuel injector cup
G6M0095
15. Engine Control Module
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
28
2-7SERVICE PROCEDURE
13. Pressure Sources Switching Solenoid Valve (AT model) - 15. Engine Control Module
Page 655 of 2890
B2M0362
3) Remove pressure sources switching solenoid valve
from bracket.
4) Installation is in the reverse order of removal.
Tightening torque:
6.4±0.5 N⋅m (0.65±0.05 kg-m, 4.7±0.4 ft-lb)
G2M0398
14. Fuel Injector
A: REMOVAL AND INSTALLATION
1) Release fuel pressure.
2) Disconnect connector from fuel injector.
G2M0431
3) Remove fuel injector from fuel pipe assembly.
B2M0169A
4) Installation is in the reverse order of removal.
CAUTION:
Replace O-rings and insulator.
Tightening torque:
T: 3.4±0.5 N⋅m (0.35±0.05 kg-m, 2.5±0.4 ft-lb)
1O-ring B
2O-ring A
3Fuel injector
4Insulator
5Fuel injector cup
G6M0095
15. Engine Control Module
A: REMOVAL AND INSTALLATION
1) Disconnect battery ground cable.
28
2-7SERVICE PROCEDURE
13. Pressure Sources Switching Solenoid Valve (AT model) - 15. Engine Control Module
Page 656 of 2890
G2M0434
2) Detach floor mat of front passenger seat.
3) Remove protect cover.
B2M0363
4) Release the lock of ECM connector and disconnect it.
5) Remove nuts which install ECM onto body.
6) Take out ECM.
B2M0364
7) Connect ECM connector and lock it.
8) Installation is in the reverse order of removal.
29
2-7SERVICE PROCEDURE
15. Engine Control Module
Page 667 of 2890
1. Precautions
WARNING:
Place “No fire” signs near the working area.
Disconnect ground terminal from battery.
Be careful not to spill fuel on the floor.
G2M0340
A: RELEASING OF FUEL PRESSURE
1) Take off floor mat.
2) Remove access hole lid.
B2M0047
3) Disconnect connector from fuel pump.
4) Start the engine, and run it until it stalls.
5) After the engine stalls, crank it for five more seconds.
6) Turn ignition switch OFF.
G2M0340
B: DRAINING OF FUEL
1) Remove rear seat and seat back.
2) Remove access hole lid.
B2M0047
3) Disconnect connector from fuel pump.
4) Release fuel pressure.
10
2-8SERVICE PROCEDURE
1. Precautions
Page 669 of 2890
B2M0049
11) On AWD model, after removing fuel sub meter unit,
drain fuel from there.
WARNING:
Do not use a motor pump when draining fuel.
2. On-Car Services
A: MEASUREMENT OF FUEL PRESSURE
1) Release fuel pressure.
2) Connect connector to fuel pump.
G2M0347
3) Disconnect fuel delivery hoses from fuel filter, and con-
nect fuel pressure gauge.
G2M0348
4) Start the engine.
5) Measure fuel pressure while disconnecting pressure
regulator vacuum hose from collector chamber.
Fuel pressure:
235 — 265 kPa (2.4 — 2.7 kg/cm
2, 34 — 38 psi)
6) After connecting pressure regulator vacuum hose, mea-
sure fuel pressure.
Fuel pressure:
177 — 206 kPa (1.8 — 2.1 kg/cm
2, 26 — 30 psi)
WARNING:
Before removing fuel pressure gauge, release fuel
pressure.
NOTE:
If out of specification as measured at step 6), check or
replace pressure regulator and pressure regulator vacuum
hose.
12
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services
Page 670 of 2890
B2M0049
11) On AWD model, after removing fuel sub meter unit,
drain fuel from there.
WARNING:
Do not use a motor pump when draining fuel.
2. On-Car Services
A: MEASUREMENT OF FUEL PRESSURE
1) Release fuel pressure.
2) Connect connector to fuel pump.
G2M0347
3) Disconnect fuel delivery hoses from fuel filter, and con-
nect fuel pressure gauge.
G2M0348
4) Start the engine.
5) Measure fuel pressure while disconnecting pressure
regulator vacuum hose from collector chamber.
Fuel pressure:
235 — 265 kPa (2.4 — 2.7 kg/cm
2, 34 — 38 psi)
6) After connecting pressure regulator vacuum hose, mea-
sure fuel pressure.
Fuel pressure:
177 — 206 kPa (1.8 — 2.1 kg/cm
2, 26 — 30 psi)
WARNING:
Before removing fuel pressure gauge, release fuel
pressure.
NOTE:
If out of specification as measured at step 6), check or
replace pressure regulator and pressure regulator vacuum
hose.
12
2-8SERVICE PROCEDURE
1. Precautions - 2. On-Car Services