1995 SUBARU LEGACY TB sensor

G2M0544
1. Front Catalytic Converter
A: REMOVAL
1) Disconnect front oxygen sensor connector.
B2M0312
2) Lift-up the vehicle.
3) Disconnect rear oxygen sensor connector.
B2M0055
4) Separate center exhaust pipe from rear exhaust pipe.
B2M0054
5) Remove bolts which hold front exhaust pipe onto cylin-
der heads.
B2M0313
6) Remove front exhaust pipe and center exhaust pipe
from hanger bracket.
CAUTION:
Be careful not to pull down front exhaust pipe and
center exhaust pipe.
2
2-1SERVICE PROCEDURE
1. Front Catalytic Converter

B2M0313
5) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
6) Connect rear oxygen sensor connector.
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7) Lower the vehicle.
8) Connect front oxygen sensor connector.
B2M0312
2. Rear Catalytic Converter
A: REMOVAL
1) Lift-up the vehicle.
2) Disconnect rear oxygen sensor connector.
B2M0055
3) Separate center exhaust pipe and rear catalytic con-
verter assembly from rear exhaust pipe.
4
2-1SERVICE PROCEDURE
1. Front Catalytic Converter - 2. Rear Catalytic Converter

B2M0313
5) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
6) Connect rear oxygen sensor connector.
G2M0544
7) Lower the vehicle.
8) Connect front oxygen sensor connector.
B2M0312
2. Rear Catalytic Converter
A: REMOVAL
1) Lift-up the vehicle.
2) Disconnect rear oxygen sensor connector.
B2M0055
3) Separate center exhaust pipe and rear catalytic con-
verter assembly from rear exhaust pipe.
4
2-1SERVICE PROCEDURE
1. Front Catalytic Converter - 2. Rear Catalytic Converter

B2M0313
4) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
5) Connect rear oxygen sensor connector.
G2M0375
3. Canister
A: REMOVAL AND INSTALLATION
1) Disconnect canister hoses from evaporation pipes.
2) Remove canister with bracket.
3) Installation is in the reverse order of removal.
CAUTION:
Insert air vent hose of canister into the hole on body.
B2M0422A
4. Purge Control Solenoid Valve
A: REMOVAL AND INSTALLATION
1) Remove bolt which installs purge control solenoid valve
onto intake manifold.
NOTE:
This figure shows the rear side of intake manifold.
6
2-1SERVICE PROCEDURE
2. Rear Catalytic Converter - 4. Purge Control Solenoid Valve

B2M0313
4) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
5) Connect rear oxygen sensor connector.
G2M0375
3. Canister
A: REMOVAL AND INSTALLATION
1) Disconnect canister hoses from evaporation pipes.
2) Remove canister with bracket.
3) Installation is in the reverse order of removal.
CAUTION:
Insert air vent hose of canister into the hole on body.
B2M0422A
4. Purge Control Solenoid Valve
A: REMOVAL AND INSTALLATION
1) Remove bolt which installs purge control solenoid valve
onto intake manifold.
NOTE:
This figure shows the rear side of intake manifold.
6
2-1SERVICE PROCEDURE
2. Rear Catalytic Converter - 4. Purge Control Solenoid Valve

B2M0313
4) Tighten bolt which holds center exhaust pipe to hanger
bracket.
Tightening torque:
35±5 N⋅m (3.6±0.5 kg-m, 26.0±3.6 ft-lb)
B2M0312
5) Connect rear oxygen sensor connector.
G2M0375
3. Canister
A: REMOVAL AND INSTALLATION
1) Disconnect canister hoses from evaporation pipes.
2) Remove canister with bracket.
3) Installation is in the reverse order of removal.
CAUTION:
Insert air vent hose of canister into the hole on body.
B2M0422A
4. Purge Control Solenoid Valve
A: REMOVAL AND INSTALLATION
1) Remove bolt which installs purge control solenoid valve
onto intake manifold.
NOTE:
This figure shows the rear side of intake manifold.
6
2-1SERVICE PROCEDURE
2. Rear Catalytic Converter - 4. Purge Control Solenoid Valve

3. Engine Idle Speed
A: MEASUREMENT
1) Before checking idle speed, check the following:
(1) Ensure that air cleaner element is free from
clogging, ignition timing is correct, spark plugs are in
good condition, and that hoses are connected properly.
(2) Ensure that malfunction indicator light (CHECK
ENGINE light) does not illuminate.
2) Warm-up the engine.
G2M0096
3) Connect Subaru Select Monitor or the OBD-II general
scan tool to data link connector.
CAUTION:
When connecting Subaru Select Monitor, turn ignition
switch to OFF.
4) Start the engine and measure engine speed.
NOTE:
Engine speed is indicated on Subaru Select Monitor by
selecting “MODE F04”.
G2M0097
NOTE:

When using the OBD-II general scan tool, carefully read
its operation manual.

When Subaru Select Monitor is not used, attach the
pickup sensor on tachometer (Secondary pickup type) to
#1 cylinder spark plug cord.

This ignition system provides simultaneous ignition for
#1 and #2 plugs. It must be noted that some tachometers
may register twice that of actual engine speed.
3
2-2
3. Engine Idle Speed

B2M0108A
3) Measure the extension of rod beyond the body. If it is
not within specifications, replace with a new one.
Rod extension: H
15.4—16.4 mm (0.606—0.646 in)
3. BELT TENSIONER
1) Check mating surfaces of timing belt and contact point
of tension adjuster rod for abnormal wear or scratches.
Replace belt tensioner if faulty.
2) Check spacer and tensioner bushing for wear.
3) Check tensioner for smooth rotation. Replace if noise or
excessive play is noted.
4) Check tensioner for grease leakage.
4. BELT IDLER
1) Check idler for smooth rotation. Replace if noise or
excessive play is noted.
2) Check outer contacting surfaces of idler pulley for
abnormal wear and scratches.
3) Check idler for grease leakage.
5. SPROCKET
1) Check sprocket teeth for abnormal wear and scratches.
2) Make sure there is no free play between sprocket and
key.
3) Check crankshaft sprocket notch for sensor for damage
and contamination of foreign matter.
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2-3SERVICE PROCEDURE
3. Timing Belt