🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 1999-2000 Codes Chassis Code Gc8: GC8 Chassis Code Gdb: GDB (early models) 👋 Introduction Market Position Segment: Performance Compact Sedan/Coupe (rally-bred homologation special) Competitive Analysis Key Rivals: Mitsubishi Lancer Evolution (early generations), Ford Escort RS Cosworth, Toyota Celica GT-Four, Nissan Pulsar GTI-R Key Features Performance Focus: Iconic turbocharged boxer engine, symmetrical all-wheel drive, precise handling characteristics, rally heritage. Target Audience: Enthusiasts, tuners, rally fans, drivers seeking a high-performance AWD experience. Manual Value Proposition Owner Benefit: Empowers owners and independent mechanics with factory-level diagnostic and repair knowledge for maintaining and optimizing the WRX. 📋 Manual Details Coverage Areas Continent Focus: Global (primarily JDM, European, Australian) Page Count Estimated Pages: Hundreds (official factory documentation varies, often 1000+ pages when compiled) Manual Type Type: Workshop Service Repair Manual (FSM - Factory Service Manual equivalent) Language Language: English (likely translated from Japanese, common for JDM imports) Format Format: Digital Download (PDF) 📖 Manual Coverage Systems Covered Powertrain: Engine (EJ20G, EJ205), Transmission (manual & automatic variants), Drivetrain (AWD system, differentials) Chassis: Suspension (front struts, rear multi-link), Steering (power assist), Brakes (front ventilated discs, rear discs), Wheels & Tires Electrical: Wiring diagrams, lighting, ignition system, charging system, starting system, ECUs, sensors, audio system Body And Interior: Body panels, doors, windows, interior trim, seats, airbags, climate control, HVAC Procedures Included Routine Maintenance: Oil changes, filter replacements, spark plug service, fluid checks and top-offs, belt inspections Component Diagnosis And Repair: Engine diagnostics (misfires, overheating), transmission troubleshooting, brake system repair, electrical fault finding, suspension component replacement Rebuild Procedures: Engine rebuild specifications, transmission overhaul, differential rebuilding Troubleshooting Guides: System-specific troubleshooting flowcharts, diagnostic trouble codes (DTCs) and their meanings Technical Depth Level Of Detail: Comprehensive: From basic fluid changes and component replacement to in-depth engine tuning, electrical system diagnostics, and full vehicle disassembly/reassembly. Diagnostic Information: Detailed diagnostic procedures, wiring diagrams for troubleshooting, sensor data interpretation. Special Tools: Identification and usage of specialized tools required for specific repair procedures. 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable if a high-quality scan or original digital source. Print Quality Scan Resolution: Variable (depends on source scan quality, typically good for factory documentation). Binding Type Digital Binding: N/A (Digital download) Paper Type Digital Paper Type: N/A (Digital download) ⚙️ Engine Specifications Primary Engine Engine Code 1: EJ20G Engine Type 1: 2.0L Flat-4 (Boxer), DOHC, 16-valve, Turbocharged Engine Code 2: EJ205 Engine Type 2: 2.0L Flat-4 (Boxer), DOHC, 16-valve, Twin-Scroll Turbocharged (later models/specific markets) Performance Horsepower Ej20G: Approx. 215-237 hp (depending on market/spec) Torque Ej20G: Approx. 200-211 lb-ft (depending on market/spec) Horsepower Ej205: Approx. 220-230 hp Torque Ej205: Approx. 217-236 lb-ft Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (Premium Recommended/Required) Turbocharger Type: Intercooled Turbocharger (TD04-13G or similar for EJ20G, Twin-Scroll for EJ205) 🔧 Transmission Standard Transmission Type Primary: 5-speed Manual Optional Transmission Type Optional: 4-speed Automatic (less common on WRX models) Features AWD System: Subaru Symmetrical All-Wheel Drive with Active Torque Split (driver-controlled center differential in manual variants) Clutch Type: Single Dry Plate, Hydraulic Operation 📐 Dimensions Exterior Length: Approx. 4350 mm (171.3 in) Width: Approx. 1700 mm (66.9 in) Height: Approx. 1425 mm (56.1 in) Wheelbase: Approx. 2520 mm (99.2 in) Weights Curb Weight: Approx. 1300-1400 kg (2866-3086 lbs), depending on trim and options Gross Vehicle Weight Rating: Not typically specified in consumer materials, but critical for service. 🛡️ Safety Features Ratings Crash Test Data: Limited specific official NHTSA/Euro NCAP ratings for 1999-2000 WRX models due to JDM focus and era; later generations have more data. Active Features ABS: Standard (Anti-lock Braking System) Passive Features Airbags: Driver and Passenger Airbags Seat Belts: 3-point front and rear seat belts, pretensioners for front seats. 💡 Technology Features Infotainment Audio System: Factory radio with cassette and CD player (optional), speaker configurations vary. Driver Assistance Traction Control: Limited or no electronic traction control systems beyond the mechanical AWD. Focus is on mechanical grip. Connectivity Bluetooth Usb: Not available in factory configuration. 🔧 Maintenance Service Intervals Oil Change Interval: Typically 3,000-5,000 miles (5,000-8,000 km) or 6 months, depending on driving conditions and oil type used. Timing Belt Replacement: Refer to manual, but generally around 60,000-100,000 miles (96,000-160,000 km). Critical for EJ series engines. Fluid Specifications Engine Oil Type Viscosity: Refer to manual for specific viscosity (e.g., 10W-30, 5W-30, 5W-40 common for turbocharged applications), API Service SG or higher. Coolant Type: Ethylene glycol-based coolant, typically green Subaru Super Coolant or equivalent. Transmission Fluid Manual: Refer to manual for GL-4 or GL-5 specification gear oil. Differential Fluid: Refer to manual for GL-5 specification gear oil, check center differential type. Known Issues Engine Knock Detonation: Susceptible to detonation if not properly fueled or if ignition timing is off, especially with modifications. Manual addresses causes and diagnostics. Head Gasket Failure: Less common than later EJ engines...