🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Model Generation: GD/GG Model Years Covered: 2001-2002 Codes Chassis Code: GDB 👋 Introduction Market Position Positioning: Iconic performance sedan, rally homologation special Target Demographic: Performance car enthusiasts, rally fans, individuals seeking a highly capable AWD sports sedan Competitive Analysis Competitors: Mitsubishi Lancer Evolution, Ford Focus RS, Audi S3, BMW 3 Series (performance variants) Key Features Performance Focus: Emphasis on turbocharged power, advanced AWD system, and driver engagement Rally Heritage: Direct lineage from World Rally Championship (WRC) success 📋 Manual Details Coverage Areas Market Focus: Global (primarily North America, Europe, Japan) Primary Audience: Professional Technicians Secondary Audience: Enthusiast DIY Mechanics Page Count Estimated Page Count: 1500+ Manual Type Type: Workshop Service Repair Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine: EJ207 (2.0L Turbocharged Boxer) Fuel System: Multi-point Fuel Injection, Turbocharger System, Intercooler Engine Management: ECU diagnostics, sensors, actuators, emissions control Transmission: 6-Speed Manual (TY856) Drivetrain: Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD) Suspension: Front MacPherson Struts, Rear Multi-link Independent, STI specific tuning Brakes: Front and Rear Disc Brakes, ABS, STI specific caliper upgrades (e.g., Brembo on some models) Electrical: Complete wiring diagrams, lighting, charging system, starting system, ECU harness Body And Chassis: Frame, body panels, interior trim, doors, windows, bumpers, aerodynamics HVAC: Heating, Ventilation, Air Conditioning system Interior: Seats, dashboard, instrumentation, airbags Procedures Included Maintenance: Scheduled maintenance, oil changes, filter replacements, fluid checks Repair: Engine rebuild, transmission overhaul, brake component replacement, suspension repair, electrical component diagnosis and repair Diagnostics: Troubleshooting guides, diagnostic trouble codes (DTCs), on-board diagnostics (OBD-II) Installation: Component replacement procedures, alignment procedures Specifications: Torque specifications, clearances, fluid capacities, electrical resistance values Technical Depth Depth: Comprehensive from basic maintenance to complete engine and transmission rebuilds Diagnostic Level: Advanced, including ECU data interpretation and wiring troubleshooting 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable for efficient information retrieval Print Quality: High-resolution, suitable for printing specific sections or the entire manual Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: EJ207 Displacement: 2.0 Liters (1994cc) Configuration: Horizontally Opposed (Boxer) 4-Cylinder Aspiration: Twin-Scroll Turbocharged (VF30 or similar) Valvetrain: DOHC, 16 Valves, Hydraulic Valve Adjusters Bore X Stroke: 92.0 mm x 75.0 mm Compression Ratio: 8.0:1 Performance Horsepower: Approx. 280 PS (276 hp) at 6,000 rpm (JDM spec) Torque: Approx. 350 Nm (258 lb-ft) at 4,000 rpm (JDM spec) Fuel System Fuel Type: Unleaded Gasoline (High Octane Recommended, 98 RON/93+ AKI) Injection System: Electronic Multi-Point Fuel Injection (EFI) Ignition System: Electronic Ignition, Coil-on-Plug Fluid Specifications Engine Oil Type: API SG or SH, SAE 10W-30 or 10W-40 (check manual for precise recommendations) Coolant Type: Subaru Super Coolant (Blue) or equivalent ethylene glycol-based antifreeze 🔧 Transmission Standard Type: 6-Speed Manual Transmission Model Code: TY856 Optional Type: N/A for WRX STI models of this era Features Drivetrain Coupling: Symmetrical All-Wheel Drive (AWD) Center Differential: Driver Controlled Center Differential (DCCD) Differential Types: Front Helical Limited Slip Differential (LSD), Rear Mechanical Limited Slip Differential (LSD) Fluid Specifications Transmission Oil Type: GL-5 Gear Oil, SAE 75W-90 (check manual for specific Subaru recommendations) Transfer Case Oil Type: GL-5 Gear Oil, SAE 75W-90 📐 Dimensions Exterior Length: Approx. 4,405 mm (173.4 inches) Width: Approx. 1,770 mm (69.7 inches) Height: Approx. 1,410 mm (55.5 inches) Wheelbase: Approx. 2,515 mm (99.0 inches) Weights Curb Weight: Approx. 1,400 - 1,450 kg (3,086 - 3,197 lbs) Gross Vehicle Weight Rating: To be specified in manual Towing Capacity: Not recommended 🛡️ Safety Features Ratings NHTSA Front Crash Test: 4-star (for 2001-2002 models) IIHS Frontal Offset: Good (for similar Subaru models of the era) Active Features ABS: Standard Anti-lock Braking System Traction Control: Standard Traction Control System (TCS) AWD: Symmetrical All-Wheel Drive (AWD) for enhanced stability and grip Passive Features Airbags: Driver and front passenger airbags Seatbelts: 3-point front and rear seatbelts Rollover Protection: Reinforced chassis structure 💡 Technology Features Infotainment Head Unit: Factory AM/FM/CD player Speakers: Factory speaker system (number and configuration varies by trim) Driver Assistance Advanced Features: Limited; focus is on performance and mechanical systems Connectivity Connectivity Options: N/A (basic audio system) 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,000-5,000 miles or 6 months (severe duty recommended for performance driving) Air Filter Replacement: Every 15,000-30,000 miles or as needed based on inspection Spark Plug Replacement: Every 30,000-60,000 miles (Iridium type) Timing Belt Replacement: Every 60,000-100,000 miles or 7 years (crucial for EJ207 engine) Fluid Specifications Brake Fluid Type: DOT 3 or DOT 4 (check manual for specific recommendations, high-temp performance fluid recommended for spirited driving) Power Steering Fluid Type: Subaru specified power steering fluid or ATF Dexron III (check manual) Coolant Capacity: Approx. 7.0 Liters (7.4 US Quarts) Known Issues Engine Wear: Piston ring land failure at high power levels,...