🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STi Model Variant: WRX STi Year: 2001-2002 Generation Generation: 2nd Generation (GD/GG) Codes Chassis Codes: GDB (2001-2002 JDM/EDM/AUS/NZ), GDA (WRX) 👋 Introduction Market Position Vehicle Segment: Performance Compact Sedan/Wagon (WRC homologation special). Target Audience: Enthusiasts, performance drivers, rally fans, and owners seeking in-depth maintenance knowledge. Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Ford Focus RS, Honda Civic Type R (in certain markets). Key Features Performance Focus: Symmetrical All-Wheel Drive, turbocharged engine, rally-bred performance heritage. Manual Value Proposition: Provides critical, manufacturer-approved repair and maintenance procedures for a sought-after performance vehicle. 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive service and repair information for Subaru Impreza WRX STi models from 2001-2002. Page Count Estimated Page Count: Approximately 1500-2000 pages (typical for full factory service manuals of this era). Manual Type Manual Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English Format Format: Likely digital (PDF) given the product description implying cost-effectiveness, though original format was print. 📖 Manual Coverage Systems Covered Engine: Detailed coverage of the EJ207 engine (2.0L DOHC Turbocharged Boxer), including assembly, disassembly, tuning, and diagnostics. Transmission: Information on the Subaru 6-speed manual transmission (TY757VW2AA for STi), including clutch, drivetrain, differentials, and AWD system (VDC). Brakes: Hydraulic brake system with ABS and potential brake bias controls, including component inspection, bleeding procedures, and master cylinder. Suspension: Front and rear suspension geometry, shock absorbers, springs, control arms, anti-roll bars, and alignment procedures. Electrical: Full electrical schematics, wiring diagrams, fuse box layouts, lighting, instrumentation, power windows, and ECU control systems. Body And Interior: Body panel repair, chassis data, interior trim removal, seating adjustments, and HVAC system. Fuel And Emissions: Fuel injection system, fuel pump, injectors, evaporative emissions control, and catalytic converter. Cooling System Cooling System: Radiator, thermostat, water pump, cooling fan operation, and coolant specifications. Lubrication System Lubrication System: Oil pump, oil filter (e.g., Subaru 15208AA080), oil pan, lubrication passages, and oil specifications. Procedures Included Maintenance Tasks: Oil changes, filter replacements, spark plug replacement, fluid checks, belt inspections/replacements. Diagnostic Procedures: Troubleshooting charts, DTC (Diagnostic Trouble Code) interpretation, symptom-based diagnostics. Repair Procedures: Engine rebuilds, transmission overhaul, brake caliper replacement, suspension component renewal, electrical component repair. Calibration And Adjustment: Wheel alignment, idle speed adjustment, clutch free play adjustment, VDC calibration (if applicable). Special Tools: Listing of Subaru-specific tools and general automotive tools required for repairs. Technical Depth Diagnostic Level: Advanced, covering ECU diagnostic protocols, sensor data interpretation, and fault code analysis. Rebuild Capability: Complete engine and transmission overhaul procedures, including torque specifications, clearances, and assembly sequences. Electrical Schematics Detail: High-resolution, detailed wiring diagrams for all vehicle systems, enabling complex electrical diagnosis. 📊 Manual Specifications File Format Digital Format: PDF Print Quality Print Readability: High-resolution scans suitable for printing or on-screen viewing, ensuring clarity of diagrams and text. Binding Type Original Binding: Staple-bound or perfect bound for printed versions. Paper Type Original Paper: Durable paper stock typical of professional workshop manuals. ⚙️ Engine Specifications Primary Engine Engine Code: EJ207 Engine Type: 2.0L Flat-4 (Boxer), DOHC, 16-valve, Twin-Scroll Turbocharged Performance Horsepower Jdm: 280 PS (276 hp) @ 6,000 rpm (DIN, often underestimated for export markets) Torque Jdm: 333 Nm (246 lb-ft) @ 4,000 rpm (DIN) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Premium Unleaded Gasoline (95 RON or higher recommended) Cooling System Coolant Capacity: Approximately 7.0 Liters (with manual specified coolant type) Lubrication System Oil Capacity: Approximately 4.5 Liters (with filter change) Recommended Oil Viscosity: 5W-30 or 10W-30 (check manual for specific climate/application) 🔧 Transmission Standard Transmission Type: 6-speed Manual Transmission Transmission Code: TY757VW2AA (for STi) Optional Optional Transmission: None (STi models exclusively featured the 6-speed manual) Features Drivetrain: Symmetrical All-Wheel Drive (AWD) with front helical LSD, rear mechanical LSD. Center Differential: Driver Controlled Center Differential (DCCD) on later models, manual viscous coupling on earlier 2001/2002 JDM STi. Transmission Fluid Type: GL-5 75W-90 (manual specified) 📐 Dimensions Exterior Length: 4,405 mm (approx.) Width: 1,740 mm (approx.) Height: 1,440 mm (approx.) Wheelbase: 2,525 mm (approx.) Weights Curb Weight: 1,430 kg (approx., varies by market and specification) 🛡️ Safety Features Ratings NHTSA Rating: Not extensively tested under modern protocols for this generation/year, but built with rally-inspired safety structures. Active Features ABS: Standard Anti-lock Braking System (ABS). AWD: Symmetrical All-Wheel Drive enhances traction and stability. Passive Features Airbags: Driver and passenger front airbags. Chassis Design: Reinforced safety cell structure. 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player with speaker system (details will be in electrical section). Driver Assistance Vdc: Vehicle Dynamics Control (VDC) system on certain trims/markets, providing stability enhancement. Manual details its operation and troubleshooting. Connectivity ECU System: Engine Control Unit (ECU) with diagnostic port (OBD-II for later models, specific Subaru proprietary for earlier). Manual explains ECU functions and diagnostic access. 🔧 Maintenance Service Intervals Oil Change Interval: 5,000 miles or 6 months (whichever...