🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Model Code: GDB (Type RA/STI) Year: 2001-2002 Codes Chassis Code: GDB Engine Code Primary: EJ207 Engine Code Variant Sti: EJ207 Twin-Scroll Turbo 👋 Introduction Market Position Vehicle Segment: Compact Sports Sedan / Rally Homologation Special Target Audience: Enthusiasts, performance drivers, rally fans, owners seeking in-depth maintenance and repair knowledge. Competitive Analysis Key Competitors Era: Mitsubishi Lancer Evolution, Honda Civic Type R, Toyota Celica GT-Four, Ford Focus RS. Key Features Vehicle Usp: Symmetrical All-Wheel Drive, turbocharged boxer engine, rally-bred performance, Driver's Control Centre Differential (DCCD). Manual Value Proposition Why This Manual: Provides authorized, detailed procedures directly from Subaru, crucial for maintaining and repairing a complex performance vehicle like the STI. 📋 Manual Details Coverage Areas Primary Coverage: 2001-2002 Subaru Impreza WRX STI (GDB chassis) Secondary Coverage: General Impreza WRX (GC8/GF8 chassis variations may have overlaps but this is STI specific) Page Count Estimated Page Count: Approximately 2500-3500 pages (typical for comprehensive FSMs, exact number often not specified for digital files but implied by scope) Manual Type Manual Type: Factory Service Manual (FSM) / Repair Manual / Workshop Manual Language Language: English Format File Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Detailed breakdown of EJ207 engine components, including pistons, connecting rods, crankshaft, cylinder heads, camshafts, timing belt/chain, lubrication system, cooling system. Engine Management: Fuel injection, ignition system, emission control systems, ECU diagnostics, sensor operations, wiring diagrams for engine sensors. Transmission Drivetrain: Manual transmission (TY756/TY856 variants), clutch system, all-wheel-drive system (DCCD - Driver's Control Centre Differential), front and rear differentials, driveshafts, axles. Suspension Steering: Front and rear suspension systems (MacPherson strut front, multi-link rear), steering rack, power steering system, wheel alignment specifications. Brakes: Brake system components (ABS, EBD), brake fluid specifications, master cylinder, brake lines, calipers, rotors, parking brake, hydraulic and electrical diagnostics. Electrical: Complete electrical system schematics, battery, charging system, starter motor, lighting systems, power windows, door locks, central locking, security system, gauge cluster, SRS (Airbag) system. Body Interior: Body panel repair, door mechanisms, interior trim removal and installation, seating systems, HVAC system, dashboard components, structural repair guidelines. Procedures Included Maintenance: Scheduled maintenance procedures, oil changes, filter replacements, spark plug replacement, brake fluid flush, coolant flush, transmission fluid changes, differential fluid changes. Diagnostics: Troubleshooting guides for common issues, diagnostic trouble codes (DTCs), specific system diagnostic flows, electrical circuit testing. Repair: Detailed step-by-step repair procedures for all major vehicle systems, including engine rebuild, transmission overhaul, suspension component replacement, brake caliper rebuild, body panel repair. Installation: Procedures for installing and replacing major components, including engine, transmission, turbocharger, intercooler, suspension parts, and body components. Specifications Data: Torque specifications for all fasteners, component clearances, fluid capacities, electrical specifications, measurement data. Technical Depth Depth Level: Comprehensive. Covers basic maintenance through complete engine and transmission overhauls, including advanced electrical diagnostics and body repair. Diagnostic Focus: In-depth diagnostic trees, resistance values, voltage checks, signal patterns for sensors and actuators. Rebuild Information: Detailed procedures and specifications for rebuilding major mechanical assemblies like engines and transmissions. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable PDF, enabling quick navigation to specific topics. Print Quality Printability: Designed for printing, allowing users to create physical copies for workshop use. Binding Type Binding Style If Printed: N/A (Digital PDF) Paper Type Paper Type If Printed: N/A (Digital PDF) ⚙️ Engine Specifications Primary Engine Engine Type: Horizontally-opposed (Boxer), 4-cylinder, 16-valve, DOHC Displacement: 2.0 Liters (1994 cc) Aspiration: Twin-Scroll Turbocharged Intercooled Performance Horsepower Ps: 265 PS (approx. 261 hp) at 6400 rpm (JDM specification) Torque Nm: 343 Nm (approx. 253 lb-ft) at 4400 rpm (JDM specification) Bore X Stroke Mm: 92.0 mm x 75.0 mm Compression Ratio: 8.0:1 Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (Premium Octane Recommended) Engine Management ECU Type: Subaru ECU (specific part numbers detailed in manual) 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission Model: TY756 (later superseded by TY856 for some variants) Optional Optional Transmission: N/A (STI models of this era were exclusively manual) Features Dccd System: Driver's Control Centre Differential (DCCD) with automatic and manual locking modes. AWD System: Symmetrical All-Wheel Drive with viscous coupling center differential (in addition to DCCD). 📐 Dimensions Exterior Length Mm: 4405 Width Mm: 1735 Height Mm: 1450 Wheelbase Mm: 2530 Track Front Mm: 1490 Track Rear Mm: 1490 Weights Curb Weight Kg: 1420 (approx.) Gross Vehicle Weight Rating Kg: Not specified in product info, detailed in manual. Towing Capacity Kg: Not applicable / Not specified. 🛡️ Safety Features Ratings NHTSA Ratings: Specific NHTSA ratings for this model and year would be documented in the manual if available for the target market. Jncsa Ratings: Often rated highly in Japanese NCAP (JNCAP) for its era. Active Features ABS: Anti-lock Braking System (ABS) with Electronic Brake-force Distribution (EBD). Traction Control: Yes, integrated with AWD and DCCD systems. Passive...