🏷️ Basic Information

Make:

Subaru

Model:

Impreza WRX STI TS RS

Year:

2001-2002

Generation Code:

GD/GG

Chassis Code Wrx:

GDA

Chassis Code Sti:

GDB

👋 Introduction

Target Audience:

Professional automotive technicians, experienced DIY enthusiasts, Subaru performance specialists.

Vehicle Segment:

Performance Compact Sedan / Hatchback

Key Competitors:

Mitsubishi Lancer Evolution, Ford Focus RS, Volkswagen Golf GTI/R32, Honda Civic Type R (depending on market).

Vehicle Usp:

Iconic rally-bred performance, symmetrical All-Wheel Drive, turbocharged Boxer engine, driver-focused dynamics.

Manual Value Proposition:

Essential resource for maintaining and repairing the unique performance systems of the Impreza WRX STI TS RS.

📋 Manual Details

Coverage Areas Overview:

Comprehensive factory service and repair for all systems.

Estimated Page Count:

Over 1500 pages (typical for comprehensive factory manuals of this era).

Manual Type:

Factory Service Repair Manual / Workshop Manual

Language:

English

Format:

Digital Download (PDF)

📖 Manual Coverage

Engine Mechanical:

Engine assembly, disassembly, troubleshooting, overhaul, lubrication, cooling, fuel, emissions.

Engine Electrical:

Ignition system, starting and charging systems, ECU diagnosis, sensors, actuators, wiring diagrams.

Transmission Manual:

Operation, overhaul, clutch, gearbox, differential, torque specifications, lubrication.

Transmission Automatic:

Operation, overhaul, torque converter, valve body, electronic controls, torque specifications, lubrication (if applicable).

Drivetrain:

All-Wheel Drive (AWD) system, center differential, driveshafts, axles, hubs, wheel bearings.

Suspension:

Front and rear suspension components, shock absorbers, springs, bushings, alignment specifications, troubleshooting.

Steering:

Power steering system, steering column, steering gear, tie rods, alignment, troubleshooting.

Brakes:

Brake system components (calipers, rotors, pads), hydraulic system, ABS, parking brake, bleeding procedures, torque specifications.

Body:

Body panels, doors, hood, trunk, interior trim, glass, seals, corrosion prevention.

Electrical Body:

Lighting system (headlights, taillights, interior), power windows, mirrors, wipers, horn, central locking, body control modules.

HVAC:

Heating, ventilation, and air conditioning (HVAC) system, refrigerant handling, diagnosis, repair.

Safety Restraints:

Airbag system, seat belts, SRS module, diagnostic procedures.

Diagnostics Troubleshooting:

System-wide diagnostic flowcharts, common fault codes, troubleshooting procedures.

Scheduled Maintenance:

Detailed intervals for oil changes, filter replacements, fluid checks, inspections.

Engine Overhaul:

Complete engine rebuild procedures, including piston ring replacement, bearing inspection, cylinder head work.

Transmission Repair:

Detailed steps for gearbox and differential overhaul, clutch replacement, AWD system maintenance.

Brake System Service:

Brake pad and rotor replacement, caliper service, brake fluid flush and bleeding.

Suspension Component Replacement:

Strut, shock absorber, ball joint, control arm, and bushing replacement.

Electrical Diagnosis And Repair:

Troubleshooting electrical faults using wiring diagrams, component testing, sensor calibration.

Bodywork And Trim Removal:

Procedures for removing and reinstalling body panels, interior trim pieces, and glass.

HVAC System Service:

Diagnosis of cooling/heating issues, refrigerant recharging, component replacement.

Airbag System Service:

Safe procedures for working with SRS components, replacement of modules and sensors.

Depth Of Information:

Factory-level detail for complete overhauls and complex repairs.

Diagnostic Capabilities:

Advanced diagnostic procedures, including interpreting diagnostic trouble codes (DTCs) and using specialized tools.

Repair Procedures:

Step-by-step instructions with torque specifications, special tool requirements, and critical tolerances.

Wiring Diagrams:

Detailed, system-specific wiring diagrams for electrical components and troubleshooting.

Illustrations And Diagrams:

Numerous diagrams, exploded views, and illustrations to clarify assembly and disassembly processes.

📊 Manual Specifications

File Format:

PDF

Searchability:

Searchable text content for quick information retrieval.

Print Quality:

High-resolution scans suitable for professional printing.

Binding Type:

Digital (N/A for printed format, but implies easy digital access and printing capabilities).

Paper Type:

Digital (N/A for printed format).

⚙️ Engine Specifications

Engine Code Wrx:

EJ205 (2.0L Turbocharged Flat-4)

Engine Code Sti:

EJ207 (2.0L Twin-Scroll Turbocharged Flat-4) - JDM; EJ257 (2.5L Turbocharged Flat-4) - USDM

Horsepower Wrx:

Approx. 227 hp @ 5600 rpm (USDM)

Torque Wrx:

Approx. 217 lb-ft @ 4000 rpm (USDM)

Horsepower Sti Jdm:

Approx. 280 PS (276 hp) @ 6000 rpm (JDM 'gentleman's agreement')

Torque Sti Jdm:

Approx. 333 Nm (246 lb-ft) @ 4000 rpm (JDM)

Horsepower Sti Usdm:

Approx. 300 hp @ 6000 rpm (USDM)

Torque Sti Usdm:

Approx. 300 lb-ft @ 4000 rpm (USDM)

Fuel Delivery:

Multi-point Fuel Injection (MPI)

Fuel Type:

Premium Unleaded Gasoline (91 octane or higher recommended)

🔧 Transmission

Transmission Type Wrx:

5-Speed Manual

Transmission Type Sti:

6-Speed Manual

Optional Transmission:

None (Performance models were manual only)

AWD System:

Subaru Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) on STI models.

📐 Dimensions

Length:

Approx. 4415 mm (173.8 in)

Width:

Approx. 1770 mm (69.7 in)

Height:

Approx. 1440 mm (56.7 in)

Wheelbase:

Approx. 2625 mm (103.3 in)

Track Width Front:

Approx. 1515 mm (59.6 in)

Track Width Rear:

Approx. 1515 mm (59.6 in)

Trunk Volume:

Approx. 12.4 cu ft (Sedan), 11.0 cu ft (Wagon - if applicable for these trims)

Curb Weight Wrx:

Approx. 3150 lbs (1429 kg)

Curb Weight Sti:

Approx. 3200-3300 lbs (1451-1497 kg) depending on market and configuration

🛡️ Safety Features

NHTSA Driver Front Impact:

Likely Good (US models tested)

NHTSA Passenger Front Impact:

Likely Good (US models tested)

IIHS Moderate Overlap Frontal:

Likely Acceptable or Good (depending on specific testing parameters of the era)

ABS:

Standard (4-wheel anti-lock braking system)

Traction Control:

Standard

Electronic Brake Force Distribution:

Standard

Airbags Front:

Driver and Front Passenger Airbags

Airbags Side:

Optional or Standard on some higher trims/markets (check specific vehicle)

Seatbelts:

3-point front and rear seatbelts with pretensioners

💡 Technology Features

Head Unit:

Factory standard AM/FM/CD player, often with cassette and basic digital display.

Speaker System:

Basic speaker configuration, often 4-6 speakers.

Cruise Control:

Standard

Limited Driver Assistance Features:

This era vehicle predates most modern advanced driver-assistance systems (ADAS).

Auxiliary Input:

Optional or aftermarket addition, not standard on all models.

🔧 Maintenance

Oil Change Interval:

Every 3,750-7,500 miles or 6 months, depending on driving conditions and oil type. Factory manual will provide precise recommendations.

Spark Plug Replacement:

Typically 30,000-60,000 miles for iridium plugs, 15,000-30,000 miles for platinum/copper (refer to manual for specific plug type).

Timing Belt Replacement:

Every 60,000-105,000 miles or 7 years (for vehicles with a timing belt; EJ20/EJ25 engines are typically belt-driven). Essential for preventing catastrophic engine damage.

Engine Oil Type:

5W-30 or 10W-30 Synthetic Motor Oil. Manual will specify viscosity and API service classification (e.g., API SN).

Coolant Type:

Subaru Super Coolant (Blue) or equivalent. 50/50 mix with distilled water.

Transmission Fluid Manual:

Gear oil for front and rear differentials, specific manual transmission fluid (e.g., Subaru Extra-S or equivalent). Capacity approx. 3.5-4.5 quarts total.

Brake Fluid Type:

DOT 3 or DOT 4 brake fluid.

Piston Ring Land Failure:

Common issue on EJ205 engines (especially when driven hard or modified) leading to oil consumption and smoking.

Clutch Wear:

Performance driving can lead to accelerated clutch wear.

Turbocharger Failure:

Due to heat and oil contamination, turbochargers can require rebuild or replacement.

Suspension Bushings:

Wear and tear on rubber suspension bushings can lead to handling degradation and noise.

Rear Differential Issues:

Some AWD system components, particularly the rear differential, can experience wear.

📚 Vehicle History

Subaru Rally History:

Subaru's deep roots in World Rally Championship (WRC) racing heavily influenced the development of the Impreza WRX and STI models.

Gd Gg Generation:

This represents the second generation of the Subaru Impreza (GD for sedan, GG for wagon), known for its more aggressive styling and improved performance compared to the previous GC8 generation.

Production Years:

2000-2007 (for the GD/GG generation)

Assembly Location:

Gunma Plant, Japan

🏆 Awards & Recognition

Car And Driver 10Best:

WRX models were frequently recognized on Car and Driver's 10Best lists during their production years for their performance value.

Wrc Success:

Subaru's consistent success in WRC during this period cemented the Impreza's reputation as a world-class rally car.