1999 SUBARU LEGACY sensor

28) Remove bolts which hold intake manifold onto
cylinder heads.
S2M0091
29) Remove intake manifold.
B2M0160
B: DISASSEMBLY
1. 2200 cc CALIFORNIA SPEC. VEHICLES
1) Disconnect engine ground terminal from intake
manifold.
B2M2779
2) Disconnect connector from ignition coil and
ignitor assembly.3) Remove ignition coil and ignitor assembly.
B2M2345
4) Disconnect connectors from throttle position
sensor (A), idle air control solenoid valve (B) and
intake manifold pressure sensor (C).
5) Disconnect air by-pass hose (D) from idle air
control solenoid valve.
B2M2346A
6) Remove throttle body.
B2M2300
7) Disconnect connectors from fuel injectors, and
purge control solenoid valve.
37
[W4B1]2-7SERVICE PROCEDURE
4. Intake Manifold

16) Remove fuel injector pipe.
B2M2781
17) Remove fuel pipes, etc. from intake manifold.
B2M2788A
(A) Pressure regulator
(B) Fuel pipe ASSY
2. 2200 cc EXCEPT CALIFORNIA SPEC.
VEHICLES
1) Remove engine ground terminal from intake
manifold.
B2M2779
2) Disconnect connector from ignition coil and
ignitor assembly.3) Remove ignition coil and ignitor assembly.
B2M2345
4) Disconnect connectors from throttle position
sensor (A) and idle air control solenoid valve (B).
B2M2357A
5) Remove throttle body.
B2M2305
6) Disconnect connectors from fuel injectors, and
purge control solenoid valve.
39
[W4B2]2-7SERVICE PROCEDURE
4. Intake Manifold

15) Remove fuel injector pipe.
B2M2789
16) Remove fuel pipes, etc. from intake manifold.
B2M2356A
(A) Pressure regulator
(B) Fuel pipe ASSY
3. 2500 cc MODEL
1) Disconnect engine ground terminal from intake
manifold.
B2M1724
2) Disconnect EGR vacuum hose from EGR
valve.
3) Disconnect back pressure hose from pipe.
4) Disconnect BPT hoses from EGR solenoid
valve and intake manifold.
5) Remove BPT with BTP holder bracket.
6) Remove EGR valve.
B2M1727
7) Disconnect connectors from throttle position
sensor, ignition coil, fuel injectors, idle air control
solenoid valve, purge control solenoid valve and
EGR solenoid valve.
B2M0347C
(A) EGR solenoid valve
(B) Throttle position sensor
(C) Idle air control solenoid valve
(D) Purge control solenoid valve
(E) Harness band
8) Remove engine harness from intake manifold.
9) Remove idle air control solenoid valve from
intake manifold.
H2M1247
41
[W4B3]2-7SERVICE PROCEDURE
4. Intake Manifold

12) Assemble throttle body to intake manifold.
CAUTION:
Replace gasket with a new one.
Tightening torque:
22
±2 N´m (2.2±0.2 kg-m, 15.9±1.4 ft-lb)
B2M2300
13) Connect connectors to throttle position sensor
(A), idle air control solenoid valve (B) and intake
manifold pressure sensor (C).
14) Connect air by-pass hose (D) to idle air con-
trol solenoid valve.
B2M2346A
15) Install ignition coil and ignitor assembly.
16) Connect connector to ignition coil and ignitor
assembly.
B2M2345
17) Install engine ground terminal to intake mani-
fold.
Tightening torque:
19
±1.5 N´m (1.9±0.15 kg-m, 13.7±1.1 ft-lb)
B2M2779
2. 2200 cc EXCEPT CALIFORNIA SPEC.
VEHICLES
1) Assemble fuel pipes, etc. to intake manifold.
B2M2356A
(A) Pressure regulator
(B) Fuel pipe ASSY
2) Install fuel injector pipe.
B2M2789
44
2-7[W4C2]SERVICE PROCEDURE
4. Intake Manifold

10) Connect connectors to fuel injectors and
purge control solenoid valve.
11) Hold engine harness by harness bands.
B2M2348A
(A) Fuel injector
(B) Purge control solenoid valve
(C) Harness band
12) Assemble throttle body to intake manifold.
CAUTION:
Replace gasket with a new one.
Tightening torque:
22
±2 N´m (2.2±0.2 kg-m, 15.9±1.4 ft-lb)
B2M2305
13) Connect connectors to throttle position sensor
(A) and idle air control solenoid valve (B).
B2M2357A
14) Install ignition coil and ignitor assembly.
15) Connect connector to ignition coil and ignitor
assembly.
B2M2345
16) Install engine ground terminal to intake mani-
fold.
Tightening torque:
19
±1.5 N´m (1.9±0.15 kg-m, 13.7±1.1 ft-lb)
B2M2779
3. 2500 cc MODEL
1) Install EGR solenoid valve and purge control
solenoid valve.
2) Install fuel injector pipes.
B2M1726
46
2-7[W4C3]SERVICE PROCEDURE
4. Intake Manifold

3) Assemble fuel pipes, etc. to intake manifold.
B2M0161D
(A) Pressure regulator
(B) Fuel pipe ASSY
4) Install ignition coil.
B6M0867
5) Assemble throttle body to intake manifold.
CAUTION:
Replace gasket with a new one.
Tightening torque:
22
±2 N´m (2.2±0.2 kg-m, 15.9±1.4 ft-lb)
B2M0157
6) Install idle air control solenoid valve to intake
manifold.
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)
H2M1247
7) Install engine harness onto intake manifold.
8) Connect connectors to throttle position sensor,
ignition coil, fuel injectors, idle air control solenoid
valve, purge control solenoid valve and EGR sole-
noid valve.
B2M0347C
(A) EGR solenoid valve
(B) Throttle position sensor
(C) Idle air control solenoid valve
(D) Purge control solenoid valve
(E) Harness band
9) Install EGR valve.
CAUTION:
Replace gasket with a new one.
Tightening torque:
19
±1.5 N´m (1.9±0.15 kg-m, 13.7±1.1 ft-lb)
10) Install BPT with BPT holder bracket.
47
[W4C3]2-7SERVICE PROCEDURE
4. Intake Manifold

11) Connect BPT hoses from EGR solenoid valve
and intake manifold.
12) Connect back pressure hose from pipe.
13) Connect EGR vacuum hose from EGR valve.
B2M1727
14) Connect engine ground terminal to intake
manifold.
Tightening torque:
19
±1.5 N´m (1.9±0.15 kg-m, 13.7±1.1 ft-lb)
B2M1724
D: INSTALLATION
1. 2200 cc CALIFORNIA SPEC. VEHICLES
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)
B2M2318
2) Connect fuel hoses.
S2M0500
3) Connect connector to oil pressure switch.
B2M1253A
4) Connect connector to crankshaft position sen-
sor.
B2M1252A
5) Connect connector to camshaft position sensor.
B2M2317B
48
2-7[W4D1]SERVICE PROCEDURE
4. Intake Manifold

6) Connect knock sensor connector.
B2M2327A
7) Connect connectors to engine coolant tempera-
ture sensor (A) and thermometer (B).
B2M0345B
8) Hold engine harness connector onto bracket.
9) Install air cleaner case stay RH and engine har-
ness bracket, and connect engine harness con-
nectors to bulkhead connectors.
B2M2315
10) Connect brake booster hose.
B2M2314
11) Connect engine coolant hose to throttle body.
B2M2299
12) Connect PCV hose (A) and pressure regulator
vacuum hose (B) to intake manifold.
B2M2313
13) Connect spark plug cords to ignition coil and
ignitor assembly.
B2M2312
14) Install fuel protector LH. (LHD model only)
B2M2754
49
[W4D1]2-7SERVICE PROCEDURE
4. Intake Manifold