Subaru Impreza WRX 2002 Workshop Service Repair Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 2002 Codes Chassis Code: GDB Engine Code Prefix: EJ20 👋 Introduction Market Position Positioning: Performance compact sedan/hatchback, rallying heritage. Competitive...

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标签: 2002 Car Cars Impreza WRX Misc Subaru

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Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza WRX

Year:

Codes

Chassis Code:

Engine Code Prefix:

👋 Introduction

Market Position

Positioning:

Performance compact sedan/hatchback, rallying heritage.

Competitive Analysis

Competitors:

Mitsubishi Lancer Evolution, Honda Civic Si, Volkswagen GTI.

Key Features

Performance Attributes:

Symmetrical All-Wheel Drive, turbocharged engine, sport-tuned suspension.

Target Audience

Audience:

Enthusiast drivers, DIY mechanics, performance tuners.

📋 Manual Details

Coverage Areas

Primary Coverage:

Workshop Service and Repair

Page Count

Estimated Pages:

1500+

Manual Type

Type:

Factory Service Manual (FSM)

Language

Language:

English

Format

Format:

📖 Manual Coverage

Systems Covered

Engine:

Yes, detailed disassembly, assembly, and diagnosis

Engine Management:

Yes, including ECU, sensors, actuators, and wiring diagrams

Fuel System:

Yes, fuel pump, injectors, pressure regulation, and EVAP

Exhaust System:

Yes, including catalytic converter and emissions controls

Transmission Manual:

Yes, full overhaul, clutch, and gearbox components

Transmission Automatic:

N/A for WRX variant

Drivetrain AWD:

Yes, including center differential, front/rear differentials

Suspension:

Yes, front and rear strut assemblies, bushings, and alignment

Steering:

Yes, power steering system, rack and pinion

Brakes:

Yes, hydraulic system, ABS, rotor/pad replacement

Electrical System:

Yes, extensive wiring diagrams and component testing

HVAC:

Yes, climate control system diagnosis and repair

Body Exterior:

Yes, panel removal, repair, and adjustment

Body Interior:

Yes, trim removal, seating, and dashboard components

Lighting:

Yes, headlamps, taillamps, interior lighting

Safety Systems:

Yes, airbags, seatbelts, and ABS (as part of brake system)

Procedures Included

Maintenance:

Yes, scheduled maintenance and fluid changes

Troubleshooting:

Yes, extensive diagnostic flowcharts and symptom-based guides

Repair:

Yes, detailed step-by-step repair procedures

Overhaul:

Yes, complete engine and transmission overhauls

Diagnostics:

Yes, including OBD-II codes and specific Subaru diagnostic trouble codes (DTCs)

Wiring Diagrams:

Yes, comprehensive and organized

Special Tools:

Yes, lists and illustrations of required special tools

Technical Depth

Depth:

Comprehensive: from basic maintenance to full engine and transmission rebuilds, including electrical diagnostics.

📊 Manual Specifications

File Format

File Type:

Searchability:

Searchable text (OCR processed)

Printability:

Printable

Print Quality

Image Resolution:

High-resolution scans of original factory documentation

Binding Type

Binding:

N/A (Digital PDF)

Paper Type

Paper Type:

N/A (Digital PDF)

⚙️ Engine Specifications

Primary Engine

Engine Type:

EJ207 (JDM Spec) / EJ205 (US Spec)

Displacement:

2.0 Liters (1994 cc)

Aspiration:

Turbocharged and Intercooled

Bore X Stroke:

92.0 mm x 75.0 mm

Compression Ratio:

8.0:1 (EJ207), 8.4:1 (EJ205)

Horsepower Us Spec:

227 hp @ 5600 rpm (approx.)

Horsepower Jdm Spec:

280 ps (276 hp) @ 6000 rpm (approx., often underestimated due to gentleman's agreement)

Performance

Torque Us Spec:

217 lb-ft @ 3200 rpm (approx.)

Torque Jdm Spec:

343 Nm (253 lb-ft) @ 4000 rpm (approx.)

Fuel System

Fuel Type:

Premium Unleaded Gasoline (91+ Octane recommended)

Fuel Delivery:

Multi-point Fuel Injection (MPI)

Ignition System:

Electronic Ignition, Coil-on-Plug

Engine Management

ECU Type:

Subaru Engine Control Unit (ECU)

🔧 Transmission

Standard

Transmission Type:

5-Speed Manual

Optional

Transmission Type:

N/A for WRX

Features

Drivetrain:

Symmetrical All-Wheel Drive (AWD) with Viscous Center Coupling

Clutch Type:

Hydraulic, Single Plate Dry Clutch

Transmission Fluid

Manual Transmission Fluid Spec:

API GL-5, SAE 75W-90 (Check manual for specific Subaru recommendation)

Differential Fluid

Front Differential Fluid Spec:

API GL-5, SAE 80W-90

Rear Differential Fluid Spec:

API GL-5, SAE 80W-90 (Limited Slip Differential may require specific additive)

📐 Dimensions

Exterior

Length:

4405 mm (173.4 in)

Width:

1735 mm (68.3 in)

Height:

1415 mm (55.7 in)

Wheelbase:

2510 mm (98.8 in)

Ground Clearance:

145 mm (5.7 in)

Weights

Curb Weight:

1400-1450 kg (3086-3197 lbs) approx.

Gross Vehicle Weight Rating:

N/A (Typically not specified for this model)

Cargo

Trunk Volume:

342 Liters (12.1 cu ft) for Sedan, 770 Liters (27.2 cu ft) with rear seats up for Wagon

🛡️ Safety Features

Ratings

NHTSA Front Impact Driver:

NHTSA Front Impact Passenger:

IIHS Front Impact:

Active Features

Yes, Anti-lock Braking System

Traction Control:

Yes, Active Traction Control (ATC) often standard

Limited Slip Differential:

Yes, typically front and rear (center is viscous)

Passive Features

Airbags Front:

Yes, Driver and Passenger front airbags

Airbags Side:

Optional or standard depending on trim/market

Seatbelts:

3-point front and rear seatbelts with pretensioners

💡 Technology Features

Infotainment

Head Unit:

Factory AM/FM/CD player, often with basic cassette tape functionality. Aftermarket upgrades common.

Speaker System:

Basic 4-6 speaker system.

Driver Assistance

Cruise Control:

Standard

Keyless Entry:

Available on some trims

Connectivity

Bluetooth:

N/A (Aftermarket installation typical)

Usb Port:

N/A (Aftermarket installation typical)

🔧 Maintenance

Service Intervals

Oil Change:

Every 3,000-5,000 miles (5,000-8,000 km) or 6 months, whichever comes first (depending on driving conditions).

Engine Air Filter:

Every 15,000 miles (24,000 km) or annually.

Cabin Air Filter:

Every 15,000 miles (24,000 km) or annually.

Spark Plugs:

Every 60,000 miles (96,000 km) - Iridium type recommended.

Timing Belt:

Every 105,000 miles (168,000 km) or 7 years (Crucial for EJ20 engines, failure causes severe damage).

Fluid Specifications

Engine Oil Spec:

API SG or SH, SAE 10W-30 or 10W-40 (Synthetic recommended for performance driving).

Coolant Spec:

Subaru Super Coolant (Blue) or equivalent silicate-free long-life coolant.

Brake Fluid Spec:

DOT 3 or DOT 4

Known Issues

Head Gaskets:

While not as prone as later generations, early EJ engines can experience head gasket leaks. Regular inspection is advised.

Piston Ringland Failure:

Common in modified or high-mileage EJ205 engines, especially if not maintained with proper fuel and oil. The manual covers diagnostic procedures for this.

Turbocharger Wear:

Regular oil changes and proper cool-down procedures are vital. Manual details inspection and replacement.

Clutch Wear:

High-performance nature means clutch wear can be accelerated with aggressive driving.

📚 Vehicle History

Brand Heritage

Brand Focus:

Subaru has a strong heritage in rally racing and producing vehicles with Symmetrical All-Wheel Drive.

Model Evolution

Generation:

Second Generation (GD/GG chassis)

Introduction Year:

2000 (for Impreza), 2001 (for WRX variant in Japan), 2002 (for WRX variant in North America)

Facelifts:

This generation received a significant facelift in 2002 (often referred to as 'Blobeye' or 'Hawkeye' depending on the year and market, 2002-2003 were the initial GD variants before the major facelift).

Production

Manufacturing Location:

Gunma Prefecture, Japan

🏆 Awards & Recognition

Recognitions

Car And Driver 2002:

Car and Driver's 10Best list for 2002.

Rally Dominance:

Subaru Impreza platform is iconic in World Rally Championship (WRC) history, significantly influencing the WRX's reputation.