🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 2002 Generation Generation Name: GD/GG Generation Start Year: 2000 Generation End Year: 2007 Codes Chassis Code: GDB (Sedan), GGA (Wagon) 👋 Introduction Market Position Segment: Performance Compact Sedan/Wagon Target Audience: Enthusiasts, tuners, DIY mechanics, and professional technicians. Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Ford Focus RS (later generations), VW Golf GTI (later generations). Key Features Vehicle Selling Points: Symmetrical All-Wheel Drive, turbocharged engine, rally-bred performance, driver-focused interior. Manual Value Proposition: Provides detailed, factory-level information for maintaining and repairing the 2002 Impreza WRX, crucial for preserving its performance and value. 📋 Manual Details Coverage Areas Primary Coverage: Subaru Impreza WRX (2002 Model Year) Trim Levels Covered: WRX (all variants) Page Count Total Pages: 3000+ Manual Type Type: Workshop Service Manual Purpose: Repair and Maintenance Language Language: English Format Format: PDF File Format File Type: PDF Searchability: Likely text-searchable due to being a digital PDF. Print Quality Quality: Variable depending on original scan, but typically high for service manuals. Binding Type Type: N/A (Digital PDF) Paper Type Type: N/A (Digital PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, disassembly, assembly, component inspection, timing belt replacement, lubrication system, cooling system. Engine Management: Fuel injection system, ignition system, emission control systems, ECU diagnostics, sensor testing. Transmission: Manual transmission (5-speed), clutch system, differential, gearbox disassembly and assembly, fluid specifications. Drivetrain: All-Wheel Drive (AWD) system, viscous coupling, driveshafts, CV joints, wheel bearings. Brakes: Front and rear disc brakes, ABS system, brake fluid specifications, bleeding procedures, caliper and master cylinder overhaul. Suspension: Front MacPherson struts, rear multi-link suspension, springs, dampers, bushings, alignment specifications. Steering: Power steering system, steering rack, column, tie rod ends, fluid specifications. Electrical System: Battery, charging system, starter, lighting, horn, power windows, power locks, fuses, relays, wiring diagrams. HVAC: Heating, ventilation, and air conditioning (HVAC) system, refrigerant types, troubleshooting, component replacement. Body And Interior: Body panel removal and installation, door mechanisms, interior trim, seats, dashboard, soundproofing. Procedures Included Maintenance Procedures: Oil change, filter replacement, spark plug replacement, coolant flush, brake pad replacement, tire rotation. Diagnostic Procedures: Troubleshooting guides for common issues, DTC (Diagnostic Trouble Code) interpretation, component testing procedures. Repair Procedures: Step-by-step instructions for engine component replacement, transmission overhaul, suspension repair, brake system service, electrical component repair. Troubleshooting Charts: Comprehensive charts linking symptoms to potential causes and repair steps. Technical Depth Depth: Comprehensive, covering everything from basic maintenance to complete engine and transmission rebuilds. Diagnostics Level: Advanced, including wiring diagrams, sensor data interpretation, and electronic control unit (ECU) troubleshooting. ⚙️ Engine Specifications Primary Engine Engine Code: EJ205 Engine Type: Horizontally Opposed (Boxer) 4-Cylinder, Turbocharged, Intercooled Displacement: 2.0 Liters (1994 cc) Bore X Stroke: 92.0 mm x 75.0 mm Compression Ratio: 8.5:1 Performance Horsepower: 227 hp @ 5600 rpm (approx.) Torque: 217 lb-ft @ 4000 rpm (approx.) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Premium (91 Octane or higher recommended) Turbocharger Turbocharger Model: IHI VF30 (or similar) 🔧 Transmission Standard Type: 5-Speed Manual Drivetrain: Symmetrical All-Wheel Drive (AWD) with Viscous Center Differential Optional Type: None offered for WRX model Features Gear Ratios: Refer to manual for specific ratios Clutch Type: Hydraulic, Single Dry Plate 📐 Dimensions Exterior Length: Sedan: 173.8 in / Wagon: 174.2 in Width: 68.1 in Height: Sedan: 56.1 in / Wagon: 57.3 in Wheelbase: 100.0 in Ground Clearance: 5.6 in Weights Curb Weight: Approx. 3100-3200 lbs Gross Vehicle Weight Rating: Refer to vehicle placard 🛡️ Safety Features Ratings NHTSA Front Impact: Not prominently rated for this specific model year, but generally good. IIHS Side Impact: Not prominently rated for this specific model year. Active Features ABS: Standard Anti-lock Braking System AWD: Standard Symmetrical All-Wheel Drive Traction Control: Not standard on 2002 WRX Passive Features Airbags: Driver and Passenger Frontal Airbags Seatbelts: 3-point ELR seatbelts with pre-tensioners Child Seat Anchors: LATCH system 💡 Technology Features Infotainment Audio System: Factory AM/FM/CD player, likely with 4 or 6 speakers. Navigation: Not available as factory option for 2002 WRX. Driver Assistance Cruise Control: Standard Limited Slip Differential: Front and rear differentials are open; center is viscous LSD. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3 months (severe service) / 7,500 miles or 6 months (normal service). Timing Belt Replacement Interval: Every 90,000 miles or 7 years (whichever comes first). Spark Plug Replacement Interval: Every 30,000 miles (copper plugs) / 60,000 miles (iridium plugs - check specific type). Fluid Specifications Engine Oil Type: SAE 5W-30 (API SG or higher, or check manual for specific Subaru specification) Coolant Type: Subaru Super Coolant (Blue) or equivalent ethylene glycol-based coolant with Subaru additive. Transmission Fluid Type Manual: API GL-5, SAE 75W-90 gear oil (refer to manual for capacity and specific brands). Brake Fluid Type: DOT 3 or DOT 4 Known Issues Headgasket Leaks: While less common on EJ205...