SUBARU IMPREZA WRX STI Full Service & Repair Manual 2001-2002

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🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Model Code: GD/GG Generation: 2nd Generation (GD/GG) Model Years Covered: 2001-2002 Codes Chassis Code: GDB (Sedan) / GGA (Wagon) 👋...

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Type: Car

Vendor:

Sku: 388833

Tags: 2001 2002 Car Cars IMPREZA Misc STI Subaru WRX

Product variants

Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza WRX STI

Model Code:

GD/GG

Generation:

2nd Generation (GD/GG)

Model Years Covered:

2001-2002

Codes

Chassis Code:

GDB (Sedan) / GGA (Wagon)

👋 Introduction

Market Position

Segment:

Performance Compact Sedan/Wagon (rally homologation special)

Heritage:

Derived from Subaru's World Rally Championship success

Competitive Analysis

Competitors:

Mitsubishi Lancer Evolution, Ford Focus RS, Honda Civic Type R (early generations)

Key Features

Performance Focus:

Emphasis on turbocharged engine, Symmetrical All-Wheel Drive, and handling dynamics

Durability:

Built for demanding rally conditions, translating to robust road-going performance

Enthusiast Following:

Strong aftermarket support and dedicated owner community

📋 Manual Details

Coverage Areas

Coverage:

Full Service & Repair Workshop Manual

Page Count

Estimated Pages:

1000+

Manual Type

Type:

Factory Service Manual (FSM) / Workshop Manual

Language

Language:

English

Format

Format:

Digital Download (PDF)

📖 Manual Coverage

Systems Covered

Engine:

2.0L EJ207 Turbocharged Flat-4 (DOHC)

Engine Management:

ECU diagnostics, fuel injection, ignition system, emissions control

Transmission:

6-Speed Manual Transmission (TY856)

Drivetrain:

All-Wheel Drive (AWD) system, differentials (front, center, rear), DCCD (Driver Controlled Center Differential)

Suspension:

Front MacPherson struts, Rear multi-link, STI specific tuning

Brakes:

Front 4-piston Subaru (Brembo optional/later models), Rear 2-piston Subaru (Brembo optional/later models), ABS system

Steering:

Power-assisted rack and pinion

Electrical:

Wiring diagrams, charging system, starting system, lighting, instruments, body electronics

Body:

Body panel removal/installation, interior trim, body sealing, collision repair basics

HVAC:

Air conditioning, heating, ventilation system service

Chassis:

Frame, subframes, mounting points

Procedures Included

Maintenance:

Oil change, filter replacement, fluid checks/changes, spark plug replacement, belt inspection/replacement

Repair:

Engine overhaul, transmission rebuild, differential service, brake system repair, suspension component replacement

Diagnostics:

Troubleshooting guides, fault code interpretation, system checks

Installation:

Component replacement, timing belt installation, turbocharger installation

Adjustments:

Valve clearance adjustment, clutch adjustment, alignment procedures

Specifications:

Torque specifications, clearances, tolerances, fluid capacities

Technical Depth

Depth:

Comprehensive from basic maintenance to complete engine and drivetrain rebuilds

Detail Level:

Factory-level detail with step-by-step instructions, diagrams, and specifications

📊 Manual Specifications

File Format

Quality:

High-resolution, searchable PDF with clear text and images

Compatibility:

Compatible with all modern computers, tablets, and smartphones

Print Quality

Printability:

Printable for physical use in a workshop environment

Binding Type

Binding:

N/A (Digital Format)

Paper Type

Paper:

N/A (Digital Format)

⚙️ Engine Specifications

Primary Engine

Engine Code:

EJ207

Configuration:

2.0L DOHC 16-valve Boxer (Flat-4)

Aspiration:

Twin-Scroll Turbocharged with Intercooler

Performance

Horsepower:

280 PS (276 hp) @ 6400 rpm (JDM Spec - varies slightly by market)

Torque:

392 Nm (289 lb-ft) @ 3200 rpm (JDM Spec - varies slightly by market)

Redline:

8000 rpm

Fuel System

Fuel Delivery:

Electronic Fuel Injection (EFI) - Sequential Port Injection

Fuel Type:

Premium Unleaded Gasoline (95 RON / 91 AKI)

Ignition System:

Distributorless Ignition System (DIS) with Coil-on-Plug

Engine Management

ECU Unit (Specific part numbers vary, refer to manual)

🔧 Transmission

Standard

Type:

6-Speed Manual Transmission

Model:

TY856

Optional

Type:

None offered for WRX STI in this period

Features

Dccd:

Driver Controlled Center Differential (Manual and Automatic modes)

Gear Ratios:

Specific ratios detailed in manual (e.g., 1st: 3.600, 2nd: 2.375, 3rd: 1.704, 4th: 1.312, 5th: 1.000, 6th: 0.825)

Fluid Type:

API GL-5, SAE 75W-90 Gear Oil (Subaru Extra-S recommended)

📐 Dimensions

Exterior

Length:

Approx. 4,415 mm (173.8 in) (Sedan), 4,465 mm (175.8 in) (Wagon)

Width:

Approx. 1,740 mm (68.5 in)

Height:

Approx. 1,415 mm (55.7 in) (Sedan), 1,445 mm (56.9 in) (Wagon)

Wheelbase:

Approx. 2,510 mm (98.8 in)

Wheel Bolt Pattern:

5x100 mm

Wheel Size:

17x7.5J (Standard), 17x8J (Optional)

Tire Size:

215/45R17 (Standard), 225/45R17 (Optional)

Weights

Curb Weight:

Approx. 1,430 kg (3,150 lb) (Sedan), 1,460 kg (3,220 lb) (Wagon)

🛡️ Safety Features

Ratings

NHTSA:

Refer to specific market regulatory data, typically good for its era but not directly comparable to modern standards.

Active Features

Symmetrical All-Wheel Drive with DCCD for enhanced traction and stability

Brakes:

Large diameter ventilated discs, ABS (Anti-lock Braking System)

Suspension:

STI-tuned performance suspension for improved cornering stability

Passive Features

Airbags:

Driver and front passenger airbags

Seatbelts:

3-point front and rear seatbelts with pretensioners and load limiters

Chassis:

Reinforced body structure

💡 Technology Features

Infotainment

Head Unit:

Factory fitted radio/CD player with basic digital display. Aftermarket upgrades are common.

Speakers:

Basic speaker system, often upgraded by owners.

Driver Assistance

Cruise Control:

Standard feature.

Standard feature.

Connectivity

Aux Input:

Not standard, aftermarket solutions available.

Bluetooth:

Not standard, aftermarket solutions available.

🔧 Maintenance

Service Intervals

Oil Change:

Every 3,000-5,000 miles (5,000-8,000 km) or 3-6 months, depending on driving conditions. Synthetic oil highly recommended.

Air Filter:

Inspect every 15,000 miles (24,000 km), replace as needed or every 30,000 miles (48,000 km).

Spark Plugs:

Iridium type: 60,000 miles (96,000 km). Refer to manual for specific type and gap.

Timing Belt:

Replace every 60,000-100,000 miles (96,000-160,000 km) or 5-7 years. Crucial for EJ engines. Include tensioner and idler pulleys.

Coolant:

Flush and replace every 30,000 miles (48,000 km) or 2 years.

Fluid Specifications

Engine Oil:

5W-30 or 0W-30 Synthetic (API SN or higher, ILSAC GF-5 or higher). Refer to manual for specific Subaru recommendations.

Engine Oil Capacity:

4.5 Liters (4.8 US Quarts) with filter

Transmission Fluid:

API GL-5, SAE 75W-90 Gear Oil (Subaru Extra-S)

Differential Fluid Front:

API GL-5, SAE 75W-90 Gear Oil (Subaru Extra-S)

Differential Fluid Rear:

API GL-5, SAE 75W-90 Gear Oil (Subaru Extra-S)

Brake Fluid:

DOT 3 or DOT 4 High-Performance Brake Fluid

Coolant:

Subaru Super Coolant (Blue) or equivalent silicate-free, long-life antifreeze/coolant

Known Issues

Piston Ring Land Cracks:

Common on high-mileage or aggressively driven EJ207 engines due to high cylinder pressures. Requires engine rebuild.

Clutch Wear:

Can wear prematurely with aggressive driving or heavy use.

Valve Stem Seals:

Can degrade over time, leading to oil consumption and blue smoke on startup.

Oil Cooler Lines:

Can develop leaks, especially the banjo bolt seals.

Alternator Failure:

Can be prone to failure, especially with aftermarket electrical accessories.

📚 Vehicle History

Brand Heritage

Rally Legacy:

Subaru's extensive World Rally Championship history directly influenced the WRX and STI models, emphasizing performance and durability.

Model Evolution

Introduction Period:

The second generation (GD/GG) debuted in 2000 (Japan) and 2001 (global markets), with the STI variant significantly enhancing performance and technology.

Key Changes 2001-2002:

Introduction of the more potent EJ207 engine for STI, 6-speed transmission, DCCD, and revised body styling (bug-eye to blob-eye transition in later stages of this generation).

Production

Manufacturing Location:

Japan (Gunma Plant)

Market Focus:

Primarily Japanese Domestic Market (JDM) for the EJ207 STI, with limited global export of high-performance variants.

🏆 Awards & Recognition

Recognitions

Performance Acclaim:

Consistently praised by automotive media for its rally-bred performance, handling, and AWD system.

Enthusiast Awards:

Often cited in 'best performance car' lists for its price point during its production years.