🏷️ Basic Information Identification Make: Subaru Model: Impreza (STI) Generation: Second Generation (GD/GG) Applicable Years: 2001, 2002 Codes Chassis Codes: GD (Sedan), GG (Wagon) 👋 Introduction Market Position Market Position: The 2001-2002 Subaru Impreza STI represents a significant evolution in Subaru's rally-bred performance lineage. This manual targets owners and enthusiasts seeking to maintain, repair, and optimize these iconic vehicles, positioning it as a crucial resource for preserving performance and value. Competitive Analysis Competitive Analysis: Competitors in this era included performance variants of the Mitsubishi Lancer Evolution, Ford Focus RS, and certain European hot hatches. The Impreza STI distinguished itself with its symmetrical all-wheel-drive system, potent turbocharged boxer engine, and a strong following in motorsport, particularly the World Rally Championship. Key Features Key Features: This manual provides comprehensive, factory-level information, enabling users to perform complex repairs and maintenance themselves, thereby saving significant costs. Its detailed diagrams, step-by-step instructions, and extensive specifications make it an indispensable tool for any STI owner. 📋 Manual Details Coverage Areas Systems Covered: Engine, Drivetrain, Suspension, Steering, Brakes, Electrical System, HVAC, Body, Chassis, Fuel System, Ignition System, Cooling System, Lubrication System, Emissions Control, Safety Systems (Airbags, ABS), Interior Components, Exterior Components, Troubleshooting, Diagnostics, Wiring Schematics, Specifications, Maintenance Schedules. Page Count Estimated Page Count: Likely 1000+ pages (typical for comprehensive workshop manuals). Manual Type Manual Type: Workshop Service Repair Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine Systems: Engine Overhaul & Rebuilding, Engine Performance, Firing Orders, Serpentine Belt Routings with Diagrams, Timing Belt Service Procedures, Cooling System, Fuel System, Ignition System, Lubrication System, Turbocharger System (if applicable to STI variant). Drivetrain Systems: Transmission Removal & Installation, Transmission In-Car Servicing, U-Joint and CV-Joint Service Procedures, All-Wheel Drive (AWD) System Operation and Service. Chassis And Suspension: Suspension, Front End & Alignment Procedures & Specifications, Brakes, Brake Servicing Procedures, Steering System. Electrical And Diagnostics Electrical Systems: Wiring Diagrams, Computer Diagnostic Trouble Tree Charts, Trouble Codes, Computer Diagnostic Codes, Electrical Component Testing. Procedures Included Maintenance Procedures: Factory Maintenance Schedules & Charts, Fluid Capacities, Filter Replacement (Oil, Air, Fuel, Cabin), Spark Plug Replacement, Belt Replacement (Timing, Serpentine), Brake Pad/Rotor Replacement, Tire Rotation and Balancing. Repair And Rebuilding: Complete Engine Overhaul & Rebuilding, Transmission Rebuilds, Suspension Component Replacement, Brake System Repairs, Electrical Component Diagnosis and Repair, HVAC System Service, Body Panel Repair and Replacement. Diagnostics And Troubleshooting: Troubleshooting & Diagnostics, Identifying and Rectifying Common Issues, Reading Diagnostic Trouble Codes (DTCs), Using Diagnostic Scan Tools, Vacuum Diagrams. Technical Depth Technical Depth: Comprehensive. Covers everything from basic maintenance to in-depth engine and transmission rebuilding, including detailed electrical system diagnostics and wiring schematics. Suitable for both DIY enthusiasts and professional technicians. 📊 Manual Specifications File Format File Format: Digital (likely PDF), often optimized for printing or digital viewing. Searchable text is a high probability. Print Quality Print Quality: High-resolution scans ensuring clarity of diagrams, illustrations, and text. Supports clear printing of all content. Binding Type Binding Type: N/A (Digital Format) Paper Type Paper Type: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ207 (typically) Engine Type: 2.0L (1994cc) turbocharged and intercooled Boxer 4-cylinder Performance Horsepower: Approx. 265-280 hp (varies by market and specific tune) Torque: Approx. 250-270 lb-ft (varies by market and specific tune) Fuel System Fuel Delivery: Multi-point fuel injection (MPI) with an electronic throttle control. Fuel Type: Premium Unleaded Gasoline (91 Octane or higher recommended) Engine Management ECU Type: ECU (Engine Control Unit) with integrated diagnostics. Engine Construction Block Material: Aluminum Alloy Head Material: Aluminum Alloy Timing Belt Or Chain Timing Mechanism: Timing Belt (requiring regular replacement) 🔧 Transmission Standard Transmission Type: 6-Speed Manual Transmission (STI specific) Optional Optional Transmission: None (STI models exclusively featured a manual gearbox). Features Drivetrain Type: Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD) in later iterations. 📐 Dimensions Exterior Wheelbase: Approx. 2515 mm (99.0 in) Length: Approx. 4405 mm (173.4 in) for Sedan, 4415 mm (173.8 in) for Wagon Width: Approx. 1750 mm (68.9 in) Height: Approx. 1430 mm (56.3 in) for Sedan, 1445 mm (56.9 in) for Wagon Weights Curb Weight: Approx. 1430 kg (3153 lbs) for Sedan Gross Vehicle Weight Rating: Refer to VIN plate for specific GVWR. Tires And Wheels Wheel Bolt Pattern: 5x100 mm Standard Tire Size: 215/45R17 (common for STI) Standard Wheel Size: 17x7.0 inches (common for STI) 🛡️ Safety Features Ratings NHTSA Ratings: Specific NHTSA ratings for 2001-2002 STI models may vary by market. General Impreza models of this era generally received good, but not perfect, ratings for their time. Active Features Active Safety Features: Anti-lock Braking System (ABS), Subaru's Symmetrical All-Wheel Drive system contributing to stability. Passive Features Passive Safety Features: Front airbags, side airbags (optional/market dependent), three-point seatbelts with pre-tensioners, reinforced chassis structure. 💡 Technology Features Infotainment Infotainment System: Basic factory radio systems with CD player. Limited integration compared to...