🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX Year: 1997, 1998 Codes Chassis Code: GC8 (for WRX variants) Engine Code: EJ20G (typically for these years, various sub-variants exist) 👋 Introduction Market Position Positioning: The Subaru Impreza WRX of this era was a rally homologation special, offering performance and all-wheel-drive capabilities to the discerning enthusiast. It was a potent driver's car known for its turbocharged boxer engine and agile handling. Competitive Analysis Competitors: Competed against performance variants of models like the Mitsubishi Lancer Evolution, Ford Escort RS Cosworth, and other hot hatches and performance sedans of the era. Key Features Performance Orientation: Focus on turbocharged engine performance, AWD grip, and rally-bred chassis dynamics. Enthusiast Appeal: Iconic status among JDM and rally enthusiasts, significant aftermarket support. 📋 Manual Details Coverage Areas Primary Focus: Service, Repair, Maintenance Included Regions: Likely global coverage given WRX model, but predominantly Japan/European market focus for these early generations. Page Count Estimated Pages: Over 1000 pages (typical for comprehensive factory service manuals) Manual Type Type: Factory Service Manual (FSM) / Workshop Manual Language Language: English (likely original Japanese source translated or primarily produced for English-speaking markets) Format Format: Digital (PDF is common for sales, Print available) 📖 Manual Coverage Systems Covered Powertrain: Engine mechanical (EJ20G), fuel system, ignition system, exhaust system, cooling system, lubrication system, turbocharger system. Drivetrain: Manual transmission (e.g., Type RA, TY754), all-wheel-drive system (DCCD system, center differential, front/rear differentials), clutch system. Suspension: Front and rear suspension components, steering system, wheel alignment specifications. Brakes: Front and rear brake systems (including performance brakes common on WRX), ABS system (if equipped). Electrical: Starting and charging systems, lighting, instrumentation, power windows, wipers, HVAC controls, ECU pinouts, wiring diagrams. Body And Chassis: Body panels, interior trim, doors, windows, seats, chassis components, structural repairs. HVAC: Heating, Ventilation, and Air Conditioning system diagnosis and repair. Procedures Included Maintenance: Scheduled maintenance intervals, fluid changes, filter replacements, tune-ups. Diagnostics: Troubleshooting charts, diagnostic trouble codes (DTCs), symptom-based troubleshooting. Repair: Detailed step-by-step repair procedures for all major components and systems. Overhaul: Engine overhaul procedures, transmission rebuilds, differential repairs. Component Replacement: Removal and installation procedures for major components like engine, transmission, turbocharger, etc. Specifications: Torque specifications, clearances, tolerances, diagnostic values. Technical Depth Depth: Comprehensive (from basic maintenance to full engine rebuilds and complex electrical diagnostics). Target Audience: Professional mechanics and advanced DIY enthusiasts. 📊 Manual Specifications File Format Digital Format: PDF Searchability: Text-searchable (if high-quality digital scan) Print Quality Print Quality: High-resolution scans, clear diagrams and text (assuming quality source) Binding Type Binding Type: N/A (Digital) or Perfect/Spiral Bound (if physical) Paper Type Paper Type: N/A (Digital) or High-quality, durable paper (if physical) ⚙️ Engine Specifications Primary Engine Engine Type: Horizontally Opposed (Boxer), turbocharged, intercooled, DOHC, 4-cylinder. Engine Code: EJ20G Displacement: 1994 cc (2.0 Liters) Performance Horsepower: Approx. 237-255 PS (177-189 kW) depending on market and specific sub-model. Torque: Approx. 240-270 Nm (177-199 lb-ft) depending on market and specific sub-model. Fuel System Fuel Delivery: Multi-point fuel injection (MPI), Electronic Fuel Injection (EFI). Fuel Type: Premium Unleaded Gasoline (Octane rating typically 95 RON or higher). Ignition System Ignition Type: Electronic Ignition (Distributor-less ignition system or single coil with distributor depending on exact spec). 🔧 Transmission Standard Transmission Type: 5-speed Manual Transmission (e.g., TY754 series). Optional Transmission Type: Very few automatic options existed for WRX; manual was standard and preferred. Features AWD System: Subaru's Symmetrical All-Wheel Drive with Active Torque Split (ATS) or Driver Controlled Center Differential (DCCD) on some higher-spec models. Gear Ratios: Specific gear ratios are detailed within the manual for performance tuning and diagnosis. 📐 Dimensions Exterior Body Styles: 4-door Sedan (GM chassis) and 2-door Coupe (GC chassis). Length: Approx. 4350 mm (Sedan) / 4340 mm (Coupe) Width: Approx. 1690 mm Height: Approx. 1405 mm (Sedan) / 1400 mm (Coupe) Weights Curb Weight: Approx. 1250-1300 kg (depending on specification) 🛡️ Safety Features Ratings Crash Test Data: Limited official crash test data publicly available for these specific early WRX models from modern agencies like NHTSA/Euro NCAP. The manual would focus on structural integrity for repairs. Active Features ABS: Anti-lock Braking System (ABS) was optional or standard on higher trims. Passive Features Airbags: Driver and front passenger airbags were becoming standard during this period. Seatbelts: Three-point seatbelts with pretensioners. 💡 Technology Features Infotainment Audio System: Basic AM/FM radio with CD player or cassette tape deck. Aftermarket upgrades are very common. Driver Assistance Traction Control: Limited to AWD system; electronic traction control systems were not prevalent in these early performance models. Connectivity Connectivity Features: Minimal by modern standards. Focus on mechanical and electrical systems, not digital connectivity. 🔧 Maintenance Service Intervals Oil Change Interval: Typically every 5,000-7,500 miles (8,000-12,000 km) or 6 months, but consult manual for specific conditions. Timing Belt Interval: Crucial: Usually around 60,000-100,000 miles (96,000-160,000 km) or 5-7 years, replacement is critical to prevent catastrophic...