Subaru 2002 Impreza Manuale utente

2002 Model Year

PDF Service Manual

Supplement For STi Model

GENERAL INFORMATION SECTION (Pub.No.G1841GE1)

ENGINE 2 SECTION (Pub.No.G1841GE3)

TRANSMISSION SECTION (Pub.No.G1841GE4)

CHASSIS SECTION (Pub.No.G1841GE5)

BODY SECTION (Pub.No.G1841GE6)

WIRING SYSTEM SECTION (Pub.No.G1841GE7)

FUJI HEAVY INDUSTRIES LTD. G1841GE1

2002 IMPREZA STi SERVICE MANUAL QUICK REFERENCE INDEX

GENERAL INFORMATION

SECTION

This service manual has been prepared

to provide SUBARU service personnel

with the necessary information and data

for the correct maintenance and repair

of SUBARU vehicles.

This manual includes the procedures

for maintenance, disassembling, reas-

sembling, inspection and adjustment of

components and diagnostics for guid-

ance of experienced mechanics.

Please peruse and utilize this manual

fully to ensure complete repair work for

satisfying our customers by keeping

their vehicle in optimum condition.

When replacement of parts during

repair work is needed, be sure to use

SUBARU genuine parts.

All information, illustration and specifi-

cations contained in this manual are

based on the latest product information

available at the time of publication

approval.

SPECIFICATIONS SPC

IDENTIFICATION ID

SPECIFICATIONS

SPC

Page

1. Impreza .......................................................................................................2

SPC-2

SPECIFICATIONS

IMPREZA

1. Impreza

A: DIMENSIONS

★1: 1.6 L

★2: 2.0 L

★3: 2.0 L Turbo

★4: With roof rail

★5: With sun roof

B: ENGINE

Model Sedan Wagon OUTBACK STi

Overall length mm (in) 4,405 (173.4)

Overall width mm (in) 1,730 (68.1) 1,695 (66.7) 1,710 (67.3) 1,730 (68.1)

Overall height (at C.W.) mm (in) 1,440 (56.7) 1,465 (57.7),

1,485 (58.5)★4

1,475 (58.1),

1,495 (58.9)★41,440 (56.7)

Compartment Length mm (in) 1,890 (74.4) 1,845 (72.6) 1,890 (74.4)

Width mm (in) 1,380 (54.3)

Height mm (in) 1,180 (46.5),

1,125 (44.3)★5

1,200 (47.2),

1,150 (45.3)★5

1,200 (47.2),

1,150 (45.3)★51,180 (46.5)

Wheelbase mm (in) 2,525 (99.4)

Tread Front mm (in) 1,485 (58.5) 1,460 (57.5)★1,

1,465 (57.7) 1,460 (57.5) 1,490 (58.7)

Rear mm (in) 1,475 (58.1),

1,480 (58.3)★3

1,450 (57.1)★1,

1,455 (57.3) 1,455 (57.3) 1,480 (58.3)

Minimum road

clearance

Without catalytic

converter

mm (in) 150 (5.9),

155 (6.1)★2

150 (5.9),

155 (6.1)★2160 (6.3) —

With catalytic

converter

mm (in) 150 (5.9),

155 (6.1)★3

150 (5.9),

155 (6.1)★3160 (6.3) 155 (6.1)

Model 1.6 L Non-Turbo 2.0 L Turbo 2.0 L 2.5 L STi

Engine type Horizontally opposed, liquid cooled, 4-cylinder, 4-stroke gasoline engine

Valve arrangement Overhead camshaft type

Bore ×Stroke mm (in) 87.9 ×65.8

(3.461 ×2.591)

92 ×75

(3.62 ×2.95)

99.5 ×79

(3.92 ×3.11)

92 ×75

(3.62 ×2.95)

Displacement cm3(cu in) 1,597 (97.45) 1,994 (121.67) 2,475 (151.02) 1,994 (121.67)

Compression ratio 10.0 ±0.2 8.0 ±0.2 10.0 ±0.2 8.0 ±0.2

Firing order 1 — 3 — 2 — 4

Idle speed at

Park/Neutral position

rpm 700 ±100 750 ±100 700 ±100 700 ±100

Maximum output kW (HP)/rpm 70

(94)/5,200

(123)/5,600

160

(215)/5,600

112

(150)/5,600

195

(261)/6,000

Maximum torque N·m (kgf-m, ft-lb)

/rpm

143

(14.6, 105.5)

/3,600

184

(18.8, 136.0)

/3,600

292

(29.8, 215.4)

/3,600

223

(22.7, 164.5)

/3,600

343

(35.0, 253.0)

/4,000

SPC-3

SPECIFICATIONS

IMPREZA

C: ELECTRICAL

Model 1.6 L Non-turbo 2.0 L Turbo 2.0 L 2.5 L STi

Ignition timing at

idling speed

BTDC/rpm 5°±10°/700 10°±10°/700 12°±10°/750 MT: 10°±10°/700

AT: 15°±10°/700 12°±10°/700

Spark

plug

Type and

manufacturer

Without

OBD

NGK: BKR6E

(without catalyst)

CHAMPION:

RC8YC4

(with catalyst)

NGK: BKR6E-11

(with catalyst)

NGK: BKR6E

(without catalyst)

CHAMPION:

RC10YC4

(with catalyst)

NGK: BKR5E-11

(with catalyst)

—

NGK: BKR6E (with-

out catalyst)

CHAMPION:

RC10YC4 (with cat-

alyst)

NGK: BKR5E-11

(with catalyst)

—

With OBD CHAMPION:

RC8YC4

CHAMPION:

RC10YC4 NGK: PFR6G

CHAMPION:

RC10YC4 NGK: PFR6G

Alternate

NGK: BKR6E-11

Alternate

NGK: BKR5E-11

Alternate

NGK: BKR6E-11

Generator 12V — 75A

Battery Type and

capacity

(5HR)

For

Europe

and South

America

12V — 48AH

(55D23L)

MT: 12V — 48AH (55D23L)

AT: 12V — 52AH (65D23L)

MT: 12V — 48AH

(55D23L)

AT: 12V — 52AH

(75D23L)

12V — 48AH

(55D23L)

Others 12V — 27AH (34B19L) —

SPC-4

SPECIFICATIONS

IMPREZA

D: TRANSMISSION

5MT: 5-forward speeds with synchromesh and 1-reverse

4AT: Electronically controlled fully-automatic, 4-forward speeds and 1-reverse

6MT: 6-forward speeds with synchromesh and 1-reverse

DSPD: Dry Single Plate Diaphragm

TCC: Torque Converter Clutch

★1: Australia spec vehicle

E: STEERING

F: SUSPENSION

Model 1.6 L Non-turbo 2.0 L Turbo 2.0 L 2.5 L STi

Transmission type 5MT 4AT 5MT 4AT 5MT 4AT 5MT 4AT 6MT

Clutch type DSPD TCC DSPD TCC DSPD TCC DSPD TCC DSPD

Gear ratio 1st 3.454 2.785 3.454 2.785 3.454,

3.166★12.785 3.454 2.785 3.636

2nd 2.062 1.545 2.062 1.545 1.947,

1.882★11.545 2.062 1.545 2.375

3rd 1.448 1.000 1.448 1.000 1.366,

1.296★11.000 1.448 1.000 1.761

4th 1.088 0.694 1.088 0.694 0.972 0.694 1.088 0.694 1.346

5th 0.825 — 0.825 — 0.738 — 0.871,

0.780★1—0.971,

1.062★1

6th ————————

0.756,

0.842★1

Reverse 3.333 2.272 3.333 2.272 3.333 2.272 3.333 2.272 3.545

Dual

range 1.447—1.447——————

Reduction

gear (Front

drive)

1st

reduction

Type of

gear — Helical — Helical — Helical — Helical —

Gear

ratio — 1.000 — 1.000 — 1.000 — 1.000 —

Final

reduction

Type of

gear Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid

Gear

ratio 4.111 4.444 3.900 4.111 3.900,

4.444★14.111 3.700,

4.111★14.111 3.900

Reduction

gear (Rear

drive)

Transfer

reduction

Type of

gear Helical — Helical — Helical — Helical — Helical

Gear

ratio 1.000 — 1.000 — 1.100,

1.000★1—1.000—

1.100,

1.000★1

Final

reduction

Type of

gear Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid Hypoid

Gear

ratio 4.111 4.444 3.900 4.111 3.545,

4.444★14.111 3.700,

4.111★14.111 3.545,

3.900★1

Model Turbo 2.0 L, 2.5 L OUTBACK OTHERS STi

Type Rack and Pinion

Turns, lock to lock RHD: 2.7

LHD: 3.0 3.0 3.2 2.7

Minimum turning circle m (ft) Curb to curb 11.0 (36.1) 10.8 (35.4) 10.4 (34.1) 11.0

Wall to wall 12.0 (39.4) 11.6 (38.1) 11.2 (36.7) 12.0

Front Macpherson strut type, Independent, Coil spring

Rear Dual-link type, Independent, Coil spring

SPC-5

SPECIFICATIONS

IMPREZA

G: BRAKE

H: TIRE

I: CAPACITY

★1: Dual range

Model 1.6 L Non-turbo 2.0 L, 2.5 L Turbo 2.0 L, STi

Service brake system Dual circuit hydraulic with vacuum suspended power unit

Front Ventilated disc brake

Rear Drum brake Disc brake Ventilated disc brake

Parking brake Mechanical on rear brakes

Rim size 14 ×51/2JJ 15 ×6JJ 16 ×61/2JJ 17 ×7JJ 17 ×71/2JJ

Tire size 175/70R14 84T

185/70R14 88H

185/65R15 88H

195/60R15 88H

P205/55R16 89V

205/50R16 87V

215/45R17 87W 225/45R17 90W

215/45R17 87W

Type Steel belted radial, Tubeless

Model 1.6 L Non-turbo 2.0 L Turbo 2.0 L 2.5 L STi

5MT 4AT 5MT 4AT 5MT 4AT 5MT 4AT 6MT

Fuel tank 2(US gal,

Imp gal) 50 (13.2, 11.0) 50 (13.2, 11.0) 60 (15.9, 13.2)

Engine

oil

Total

capacity

2(US qt,

Imp qt) 4.0 (4.2, 3.5) 4.5 (4.8, 4.0) 4.0 (4.2, 3.5) 4.5

(4.8, 4.0)

Engine

oil

amount

for refill

2(US qt,

Imp qt) Approx. 4.0 (4.2, 3.5) Approx.

4.5 (4.8, 4.0)

Approx.

4.0 (4.2, 3.5)

Approx.

4.5

(4.8, 4.0)

Transmission

gear oil

2(US qt,

Imp qt)

3.5

(3.7, 3.1),

4.0

(4.2, 3.5)

★1

—

3.5

(3.7, 3.1),

4.0

(4.2, 3.5)

★1

—3.5

(3.7, 3.1) —3.5

(3.7, 3.1) —4.1

(4.3, 3.6)

Automatic trans-

mission fluid

2(US qt,

Imp qt) —8.4

(8.9, 7.4) —8.4

(8.9, 7.4) —9.3

(9.8, 8.2) —9.3

(9.8, 8.2) —

AT differential

gear oil

2(US qt,

Imp qt) —1.2

(1.3, 1.1) —1.2

(1.3, 1.1) —

AWD rear differ-

ential gear oil

2(US qt,

Imp qt) 0.8 (0.8, 0.7) 1.0

(1.1, 0.9)

Power steering

fluid

2(US qt,

Imp qt) 0.7 (0.7, 0.6)

Engine coolant 2(US qt,

Imp qt)

7.4

(7.8, 6.5)

7.3

(7.7, 6.4)

7.0

(7.4, 6.2)

6.9

(7.3, 6.1)

7.7

(8.1, 6.8)

7.7

(8.1, 6.8)

7.0

(7.4, 6.2)

6.9

(7.3, 6.1)

7.7

(8.1, 6.8)

SPC-6

SPECIFICATIONS

IMPREZA

J: WEIGHT

1. LHD VEHICLE

Sedan

★1: For option code, refer to ID section. <Ref. to ID-5, Option code.>

Option code★1ECK4K0KS

Model 1.6 L

AWD

5MT 4AT 5MT 4AT 5MT 4AT 5MT 4AT

Curb weight (C.W.) Front kgf (lb) 730

(1,609)

750

(1,654)

750

(1,654)

770

(1,698)

750

(1,654)

770

(1,698)

740

(1,631)

760

(1,676)

Rear kgf (lb) 520

(1,146)

520

(1,146)

520

(1,146)

520

(1,146)

520

(1,146)

520

(1,146)

535

(1,179)

535

(1,179)

Total kgf (lb) 1,250

(2,755)

1,270

(2,800)

1,270

(2,800)

1,290

(2,844)

1,270

(2,800)

1,290

(2,844)

1,275

(2,810)

1,295

(2,855)

Maximum permissible

axle weight (M.P.A.W.)

Front kgf (lb) 890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

Rear kgf (lb) 890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

890

(1,962)

Maximum permissible

weight (M.P.W.)

Total kgf (lb) 1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

1,700

(3,748)

Option Air conditioner ——❍❍❍❍❍❍

Cruise control ————————

ABS ————————

Aluminium wheel ————————

Rear spoiler ————————

Spoiler pac ————————

Option code★1ECK4K0KS

Model 2.0 L

AWD

5MT 4AT 5MT 4AT 5MT 4AT 5MT 4AT

Curb weight (C.W.) Front kgf (lb) 745

(1,643)

770

(1,698)

765

(1,687)

790

(1,742)

760

(1,676)

795

(1,753)

750

(1,653)

780

(1,720)

Rear kgf (lb) 535

(1,179)

530

(1,168)

530

(1,168)

525

(1,157)

525

(1,157)

530

(1,168)

550

(1,213)

545

(1,202)

Total kgf (lb) 1,280

(2,822)

1,300

(2,866)

1,295

(2,855)

1,315

(2,899)

1,285

(2,833)

1,325

(2,921)

1,300

(2,866)

1,325

(2,922)

Maximum permissible

axle weight (M.P.A.W.)

Front kgf (lb) 920

(2,028)

920

(2,028)

920

(2,028)

920

(2,028)

920

(2,028)

920

(2,028)

920

(2,028)

920

(2,028)

Rear kgf (lb) 910

(2,006)

910

(2,006)

910

(2,006)

910

(2,006)

910

(2,006)

910

(2,006)

910

(2,006)

910

(2,006)

Maximum permissible

weight (M.P.W.)

Total kgf (lb) 1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

1,760

(3,880)

Option Air conditioner ——❍❍❍❍❍❍

Cruise control ————————

ABS ——❍❍❍❍—❍

Aluminium wheel ——❍❍——❍❍

Rear spoiler ——————❍❍

Spoiler pac ————————

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