🏷️ Basic Information Identification Make: Subaru Model: Impreza (STI) Year: 2002 Model Code: GDB Chassis Code: GDB Market Designation: Global (with specific JDM variants often covered) 👋 Introduction Market Position Segment: Performance Compact Sedan/Hatchback Usp: Iconic rally-bred performance, turbocharged boxer engine, Symmetrical All-Wheel Drive system, focused driving dynamics Competitive Analysis Key Competitors: Mitsubishi Lancer Evolution, Mitsubishi Eclipse GT, Acura Integra Type R (in spirit), Ford Focus SVT Key Features Performance Focus: Designed for enthusiasts seeking high performance and track capability AWD Capability: Subaru's signature Symmetrical All-Wheel Drive for superior traction and handling Turbocharged Engine: Powerful EJ207 turbocharged boxer engine delivering robust power output 📋 Manual Details Coverage Areas Coverage: All styles and trims of the 2002 Subaru Impreza and Impreza STI Page Count Estimated Page Count: 1500-2000 (typical for a complete factory service manual of this era) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Digital (likely PDF) 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, cylinder head, block, pistons, crankshaft, camshafts, valve train, timing belt/chain system, lubrication, cooling Engine Management: ECU, fuel injection, ignition system, sensors (MAP, MAF, O2, TPS, knock), emissions control, diagnostic trouble codes (DTCs) Transmission Manual: Gearbox assembly, clutch operation, shift linkages, differential, fluid specifications Transmission Automatic: Transmission assembly, torque converter, hydraulic control, gear selection, fluid specifications (if applicable to specific trims) Drivetrain: All-Wheel Drive (AWD) system, center differential, rear differential, driveshafts, CV joints Suspension: Front and rear suspension components, struts, shocks, springs, control arms, bushings, alignment specifications Steering: Power steering system, steering rack, tie rods, wheel alignment Brakes: Brake system components (calipers, rotors, pads, lines), ABS system, parking brake, fluid specifications, bleeding procedures Electrical System: Battery, alternator, starter, wiring diagrams, lighting, fuses, relays, body control modules HVAC: Heating, ventilation, and air conditioning system, compressor, refrigerant, controls Body And Chassis: Body panels, doors, interior trim, glass, chassis components, rust prevention Safety Systems: Airbag system, seat belts, SRS module Procedures Included Scheduled Maintenance: Oil changes, filter replacements, fluid checks, spark plug replacement, timing belt inspection/replacement Troubleshooting: Diagnostic procedures for common symptoms, fault code interpretation, step-by-step diagnostic flowcharts Component Repair Rebuild: Detailed instructions for engine, transmission, differential, suspension, and brake component overhauls and repairs Diagnostics: Electrical system diagnostics, fuel system diagnostics, emission control system diagnostics Installations: Component replacement procedures (e.g., clutch, turbocharger, sensors), body panel replacement Technical Depth Depth: Comprehensive, from basic maintenance to full engine and transmission rebuilds, including electrical schematics and diagnostic procedures 📊 Manual Specifications File Format Digital Format: PDF (Searchable, Printable) Print Quality Image Resolution: High resolution for clear diagrams and text Binding Type Binding: N/A (Digital Format) Paper Type Paper Quality: N/A (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Code: EJ207 Engine Type: Horizontally-opposed (Boxer), turbocharged, intercooled, DOHC, 16-valve Displacement: 1994 cc (2.0 Liters) Performance Horsepower Ps: 280 PS (276 hp) @ 6200 RPM (JDM Spec, often underreported for domestic markets) Torque Nm: 350 Nm (258 lb-ft) @ 4000 RPM (JDM Spec) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Fuel Type: Unleaded Premium (95 RON or higher recommended) Engine Internals Pistons: Forged pistons (STI specific) Connecting Rods: Forged connecting rods (STI specific) Crankshaft: Forged crankshaft Cooling System Radiator Type: Aluminum, high-efficiency Lubrication System Oil Capacity: 4.5 Liters (4.8 US Quarts) with filter Turbocharger Turbo Model: IHI VF30 (or similar variant) Boost Pressure: Approx. 1.1-1.2 bar (16-17.5 psi) peak 🔧 Transmission Standard Transmission Type: 6-speed Manual Transmission Optional Transmission Type: N/A for STI model in this year Features AWD System: Symmetrical All-Wheel Drive with Driver Controlled Center Differential (DCCD) Front Differential: Viscous coupling, limited-slip Rear Differential: Viscous coupling, limited-slip (or helical LSD on some models) Fluid Specifications Manual Transmission Fluid: Subaru Extra-S Gear Oil (or equivalent GL-5 75W-90) Rear Differential Fluid: Subaru Extra-S Gear Oil (or equivalent GL-5 75W-90) 📐 Dimensions Exterior Length: 4415 mm (173.8 in) Width: 1770 mm (69.7 in) Height: 1410 mm (55.5 in) Wheelbase: 2525 mm (99.4 in) Ground Clearance: 135 mm (5.3 in) Weights Curb Weight: 1430 kg (3153 lbs) Gross Vehicle Weight Rating: 1870 kg (4123 lbs) Wheels And Tires Standard Wheel Size: 17 x 7.5 inches Standard Tire Size: 225/45R17 Bolt Pattern: 5 x 100 mm 🛡️ Safety Features Ratings NHTSA Front Crash Test: 4-star driver, 4-star passenger (for non-STI models, STI specific data may vary slightly) IIHS Side Impact: Good (for non-STI models) Active Features ABS: Standard Anti-lock Braking System Traction Control: Yes (often integrated with AWD/DCCD) Passive Features Airbags: Driver and front passenger airbags, side airbags (optional or standard depending on market) Seatbelts: 3-point front and rear seat belts with pretensioners and load limiters 💡 Technology Features Infotainment Head Unit: Factory single-DIN or double-DIN CD player with AM/FM radio. Aftermarket upgrades common. Speaker System: Standard 4 or 6 speaker system. Driver Assistance Cruise Control: Standard Connectivity Usb Aux Input: Not standard; requires aftermarket installation. 🔧 Maintenance...