🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STI Year: 2002 Codes Chassis Code: GDB Engine Codes: EJ207 👋 Introduction Market Position Positioning: A professional-grade, comprehensive digital service and repair manual designed for owners and independent workshops looking to perform in-depth maintenance and repairs on the 2002 Subaru Impreza WRX STI. Competitive Analysis Analogy: This manual provides the same depth of information as official Subaru factory service manuals, offering a significant cost-saving alternative for enthusiasts and mechanics. Key Features Content Richness: Contains hundreds of illustrations, detailed diagrams, step-by-step instructions, and extensive technical data for all vehicle systems. Accessibility: Instant download provides immediate access to critical repair information, eliminating shipping delays and costs. Usability: Designed for ease of use with clear, step-by-step instructions, making complex repairs accessible to users of varying skill levels. 📋 Manual Details Coverage Areas Primary Coverage: 2002 Subaru Impreza WRX STI Page Count Estimated Page Count: Varies, but typically extensive for a full service manual (often 1000+ pages) Manual Type Type: Service Repair Manual / Workshop Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine overhaul and rebuilding, timing belt replacement, serpentine belt routings with diagrams, timing belt service procedures, transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures, firing orders Chassis: Brakes (servicing procedures), front end and alignment procedures and specifications, suspension, sunroof Electrical And Diagnostics: Trouble codes, wiring diagrams (complete), computer diagnostic trouble tree charts, engine performance, computer diagnostic codes Comfort And Climate: Air conditioning service and capacities Body And Interior: Implied coverage of body components and interior systems through general repair procedures and illustrations Procedures Included Maintenance: Factory maintenance schedules and charts, fluid specifications, general maintenance procedures Repair And Rebuilding: Engine overhaul and rebuilding, specific component repair procedures, comprehensive repair procedures for all covered systems Diagnostics And Troubleshooting: Trouble codes, computer diagnostic trouble tree charts, troubleshooting and diagnostics for engine and other systems Specifications: Detailed specifications on every model covered, complete torque specifications, alignment specifications, fluid capacities Technical Depth Depth: Comprehensive, covering everything from basic maintenance to advanced engine rebuilding and diagnostics. Equivalent to factory service information used by professional technicians. 📊 Manual Specifications File Format Format: PDF Compatibility: All Versions of Windows & Mac Requirements: Adobe PDF Reader Print Quality Printability: All pages are printable, allowing users to print specific sections or the entire manual. Zoom Capability: High zoom capability for detailed viewing of parts and diagrams. Binding Type Type: Digital Download (no physical binding) Paper Type Type: Not Applicable (Digital Format) ⚙️ Engine Specifications Primary Engine Engine Type: Horizontally-opposed (Boxer), turbocharged, intercooled, DOHC, 16-valve, 4-cylinder boxer engine Engine Code: EJ207 Displacement: 1994 cc (2.0 Liters) Performance Horsepower: Approx. 265 PS (261 hp) @ 5600 rpm (JDM/European Spec) Torque: Approx. 343 Nm (253 lb-ft) @ 4000 rpm (JDM/European Spec) Fuel System Induction: Multi-point fuel injection with twin-scroll turbocharger and top-mounted intercooler Engine Management ECM Type: Electronic Control Module (ECM) with detailed diagnostic procedures Cooling System Radiator Cap Pressure: Typically 1.1 kg/cm² (15.6 psi) - Verify in manual Lubrication System Oil Capacity: Approx. 4.5 Liters (4.8 US Quarts) with filter - Verify in manual Recommended Oil Viscosity: 5W-30 or 10W-30 synthetic oil is commonly recommended for performance applications - Verify in manual 🔧 Transmission Standard Type: 6-speed manual transmission (TY757VW) Optional Type: Not applicable for the 2002 STI model, exclusively manual. Features Drivetrain: Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD) Fluid Requirements Transmission Fluid Type: Hypoid gear oil, API GL-5, SAE 75W-90 - Verify in manual for specific Subaru specifications. Fluid Capacity Transmission Oil Capacity: Approximately 2.7 Liters (2.85 US Quarts) for 6-speed manual - Verify in manual. Differential Fluid Front And Rear Differential Oil Type: Hypoid gear oil, API GL-5, SAE 75W-90 - Verify in manual for specific Subaru specifications. 📐 Dimensions Exterior Length: 4405 mm (173.4 inches) Width: 1770 mm (69.7 inches) Height: 1425 mm (56.1 inches) Wheelbase: 2525 mm (99.4 inches) Ground Clearance: Approximately 130 mm (5.1 inches) - May vary slightly Weights Curb Weight: Approx. 1430 kg (3153 lbs) Gross Vehicle Weight Rating: Not explicitly provided, but typically around 1900 kg 🛡️ Safety Features Ratings NHTSA Front Impact: 4 Stars (Driver), 5 Stars (Passenger) for the 2002 model year Impreza platform - Specific STI ratings may vary. Active Features Braking System: Four-wheel disc brakes with ABS (Anti-lock Braking System) - Fronts are typically larger Brembo units on STI models. Traction Control: Subaru Vehicle Dynamics Control (VDC) often included or available on STI models, depending on market and trim. Passive Features Airbags: Front driver and passenger airbags are standard. Seatbelts: 3-point front and rear seatbelts with pretensioners. Chassis Design: Ring-shaped reinforcement frame for enhanced structural integrity. 💡 Technology Features Infotainment Audio System: Standard factory radio with CD player, often a basic 4 or 6-speaker system. Higher trims may have...
A professional-grade, comprehensive digital service and repair manual designed for owners and independent workshops looking to perform in-depth maintenance and repairs on the 2002 Subaru Impreza WRX STI.
Competitive Analysis
Analogy:
This manual provides the same depth of information as official Subaru factory service manuals, offering a significant cost-saving alternative for enthusiasts and mechanics.
Key Features
Content Richness:
Contains hundreds of illustrations, detailed diagrams, step-by-step instructions, and extensive technical data for all vehicle systems.
Accessibility:
Instant download provides immediate access to critical repair information, eliminating shipping delays and costs.
Usability:
Designed for ease of use with clear, step-by-step instructions, making complex repairs accessible to users of varying skill levels.
📋 Manual Details
Coverage Areas
Primary Coverage:
2002 Subaru Impreza WRX STI
Page Count
Estimated Page Count:
Varies, but typically extensive for a full service manual (often 1000+ pages)
Manual Type
Type:
Service Repair Manual / Workshop Manual
Language
Language:
English
Format
Format:
PDF
📖 Manual Coverage
Systems Covered
Powertrain:
Engine overhaul and rebuilding, timing belt replacement, serpentine belt routings with diagrams, timing belt service procedures, transmission removal and installation, transmission in-car servicing, U-joint and CV-joint service procedures, firing orders
Chassis:
Brakes (servicing procedures), front end and alignment procedures and specifications, suspension, sunroof
Implied coverage of body components and interior systems through general repair procedures and illustrations
Procedures Included
Maintenance:
Factory maintenance schedules and charts, fluid specifications, general maintenance procedures
Repair And Rebuilding:
Engine overhaul and rebuilding, specific component repair procedures, comprehensive repair procedures for all covered systems
Diagnostics And Troubleshooting:
Trouble codes, computer diagnostic trouble tree charts, troubleshooting and diagnostics for engine and other systems
Specifications:
Detailed specifications on every model covered, complete torque specifications, alignment specifications, fluid capacities
Technical Depth
Depth:
Comprehensive, covering everything from basic maintenance to advanced engine rebuilding and diagnostics. Equivalent to factory service information used by professional technicians.
📊 Manual Specifications
File Format
Format:
PDF
Compatibility:
All Versions of Windows & Mac
Requirements:
Adobe PDF Reader
Print Quality
Printability:
All pages are printable, allowing users to print specific sections or the entire manual.
Zoom Capability:
High zoom capability for detailed viewing of parts and diagrams.
Multi-point fuel injection with twin-scroll turbocharger and top-mounted intercooler
Engine Management
ECM Type:
Electronic Control Module (ECM) with detailed diagnostic procedures
Cooling System
Radiator Cap Pressure:
Typically 1.1 kg/cm² (15.6 psi) - Verify in manual
Lubrication System
Oil Capacity:
Approx. 4.5 Liters (4.8 US Quarts) with filter - Verify in manual
Recommended Oil Viscosity:
5W-30 or 10W-30 synthetic oil is commonly recommended for performance applications - Verify in manual
🔧 Transmission
Standard
Type:
6-speed manual transmission (TY757VW)
Optional
Type:
Not applicable for the 2002 STI model, exclusively manual.
Features
Drivetrain:
Symmetrical All-Wheel Drive (AWD) with Driver Controlled Center Differential (DCCD)
Fluid Requirements
Transmission Fluid Type:
Hypoid gear oil, API GL-5, SAE 75W-90 - Verify in manual for specific Subaru specifications.
Fluid Capacity
Transmission Oil Capacity:
Approximately 2.7 Liters (2.85 US Quarts) for 6-speed manual - Verify in manual.
Differential Fluid
Front And Rear Differential Oil Type:
Hypoid gear oil, API GL-5, SAE 75W-90 - Verify in manual for specific Subaru specifications.
📐 Dimensions
Exterior
Length:
4405 mm (173.4 inches)
Width:
1770 mm (69.7 inches)
Height:
1425 mm (56.1 inches)
Wheelbase:
2525 mm (99.4 inches)
Ground Clearance:
Approximately 130 mm (5.1 inches) - May vary slightly
Weights
Curb Weight:
Approx. 1430 kg (3153 lbs)
Gross Vehicle Weight Rating:
Not explicitly provided, but typically around 1900 kg
🛡️ Safety Features
Ratings
NHTSA Front Impact:
4 Stars (Driver), 5 Stars (Passenger) for the 2002 model year Impreza platform - Specific STI ratings may vary.
Active Features
Braking System:
Four-wheel disc brakes with ABS (Anti-lock Braking System) - Fronts are typically larger Brembo units on STI models.
Traction Control:
Subaru Vehicle Dynamics Control (VDC) often included or available on STI models, depending on market and trim.
Passive Features
Airbags:
Front driver and passenger airbags are standard.
Seatbelts:
3-point front and rear seatbelts with pretensioners.
Chassis Design:
Ring-shaped reinforcement frame for enhanced structural integrity.
💡 Technology Features
Infotainment
Audio System:
Standard factory radio with CD player, often a basic 4 or 6-speaker system. Higher trims may have premium audio options.
Driver Assistance
ABS:
Standard Anti-lock Braking System.
AWD System:
Symmetrical All-Wheel Drive with DCCD (Driver Controlled Center Differential) is a key technological feature for optimal traction and handling.
Connectivity
Auxiliary Inputs:
Typically none from the factory on this model. Aftermarket solutions are common.
🔧 Maintenance
Service Intervals
Oil Change Interval:
Typically 5,000-7,500 miles (8,000-12,000 km) or 6 months, whichever comes first, for synthetic oil. Always consult manual for exact recommendation.
Timing Belt Replacement Interval:
Critical interval, usually around 105,000 miles (168,000 km) or 7 years, but must be verified in the manual. Failure can cause catastrophic engine damage.
Spark Plug Replacement:
Typically around 60,000 miles (96,000 km), but varies based on plug type. Manual will specify.
Brake Fluid Flush:
Recommended every 2-3 years due to moisture absorption.
Fluid Specifications
Engine Coolant:
Subaru Super Coolant (blue) or equivalent phosphate-free ethylene glycol-based coolant. Capacity ~7.9 Liters. Verify in manual.
Power Steering Fluid:
Subaru specifies ATF Dexron III or equivalent. Capacity ~1.0 Liter. Verify in manual.
Known Issues
Ej207 Engine:
While robust, common considerations include ringland failures on aggressively tuned engines, turbocharger wear, and potential for head gasket issues if not properly maintained (though less prevalent than on earlier EJ25 engines).
Suspension And Steering:
Wear on bushings, ball joints, and tie rod ends can occur with mileage and aggressive driving. AWD system components require proper fluid maintenance.
Electrical Components:
Older vehicles may experience wear on sensors, ignition coils, and wiring harness connections.
📚 Vehicle History
Brand Heritage
Subaru Philosophy:
Subaru is renowned for its Symmetrical All-Wheel Drive system, horizontally-opposed 'Boxer' engines, and a heritage in rally racing.
Model Evolution
Impreza Lineage:
The Impreza, introduced in 1992, quickly gained a following, with the WRX (World Rally eXperimental) and STI (Subaru Tecnica International) variants becoming icons of performance and motorsport.
Gd Generation:
The 2002 model year marked the introduction of the second generation (GDB) Impreza, featuring a distinct 'bug-eye' or 'peanut-eye' front-end design, which evolved over its production cycle.
Production
Manufacturing Location:
Primary manufacturing for the Impreza WRX STI was in Japan (e.g., Gunma Prefecture).
Production Years:
The second generation Impreza (GDB) was produced from 2000 to 2007, with the 2002 model year being the initial iteration of this generation.
🏆 Awards & Recognition
Recognitions
Rally Heritage:
The Impreza WRX STI's lineage is deeply intertwined with rally success, earning multiple WRC driver's and manufacturer's championships for Subaru, cementing its performance credentials.
Automotive Press:
Consistently praised by automotive publications for its handling, performance, and rally-bred capabilities, though the 'bug-eye' styling of the 2002 model was divisive.
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