Subaru Impreza WRX STi 2001 2002 Service Repair Workshop Manual

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🏷️ Basic Information Identification Make: Subaru Model: Impreza WRX STi Generation: GD/GG (Second Generation) Codes Chassis Code: GDB Engine Code Prefix: EJ 👋 Introduction Market Position Segment: Performance Compact Sedan/Wagon...

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Type: Car

Vendor:

Sku: 260627

Tags: 2001 2002 Car Cars Impreza WRX STi Misc Subaru

Product variants

Description

🏷️ Basic Information

Identification

Make:

Subaru

Model:

Impreza WRX STi

Generation:

GD/GG (Second Generation)

Codes

Chassis Code:

Engine Code Prefix:

👋 Introduction

Market Position

Segment:

Performance Compact Sedan/Wagon

Target Audience:

Enthusiasts, performance drivers, rally sport fans

Competitive Analysis

Competitors:

Mitsubishi Lancer Evolution, Nissan Sentra SE-R, Volkswagen Golf GTI

Key Features

All Wheel Drive:

Symmetrical All-Wheel Drive (SAWD) as standard

Turbocharged Engine:

Performance-tuned turbocharged boxer engine

Suspension:

Performance-oriented suspension tuning

Rally Heritage:

Direct lineage and technology from Subaru's WRC program

📋 Manual Details

Coverage Areas

Covered Models:

All Subaru Impreza WRX STi Models

Covered Years:

2001, 2002

Page Count

Estimated Pages:

Thousands (comprehensive workshop manual)

Manual Type

Type:

Workshop Service Repair Manual

Language

Language:

English

Format

Format:

Digital (likely PDF, printable pages)

📖 Manual Coverage

Systems Covered

Engine Mechanical:

Engine assembly, disassembly, cylinder head, pistons, crankshaft, camshafts, timing system, lubrication system

Engine Management:

ECU, fuel injection, ignition system, emissions control, sensors, actuators, diagnostic trouble codes (DTCs)

Transmission:

Manual transmission (TY757/TY856 variations), clutch system, drivetrain components (driveshafts, differentials)

Suspension:

Front and rear suspension, struts, springs, control arms, anti-roll bars, alignment specifications

Brakes:

Brake system hydraulics, calipers, rotors, pads, ABS system, parking brake

Electrical:

Wiring diagrams, lighting system, starting and charging system, fuses, relays, instrumentation, comfort systems

Body And Chassis:

Body panels, doors, interior trim, chassis components, crash structure, rust prevention

HVAC:

Heating, ventilation, and air conditioning system components and servicing

Fuel System:

Fuel pump, fuel injectors, fuel lines, fuel tank, fuel filter replacement

Cooling System:

Radiator, water pump, thermostat, coolant hoses, pressure testing

Procedures Included

Routine Maintenance:

Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, brake pad inspection

Troubleshooting:

Diagnostic procedures for common malfunctions, symptom-based troubleshooting guides

Repair And Rebuild:

Detailed step-by-step instructions for component removal, installation, and rebuilding (e.g., engine, transmission, turbocharger)

Diagnostics:

Use of diagnostic tools, interpretation of diagnostic data, fault code identification and resolution

Component Replacement:

Instructions for replacing common wear items and major components

Torque Specifications:

Precise torque values for all critical fasteners

Technical Depth

Depth:

Comprehensive (A-Z coverage) from basic maintenance to advanced engine and transmission rebuilds

Visual Aids:

Tons of detailed pictures and diagrams

Electrical Detail:

Detailed electrical schematics and wiring diagrams

Diagnostic Codes:

Coverage of Diagnostic Trouble Codes (DTCs) and their resolutions

📊 Manual Specifications

File Format

Format Type:

Digital (likely PDF)

Searchability:

Likely searchable text for quick information retrieval

Print Quality

Printability:

All pages are printable

Binding Type

Binding Type:

N/A (Digital format)

Paper Type

Paper Type:

N/A (Digital format)

⚙️ Engine Specifications

Primary Engine

Engine Type:

EJ207 (2.0L DOHC Turbocharged Boxer)

Displacement:

1994 cc

Bore X Stroke:

92.0 mm x 75.0 mm

Compression Ratio:

8.0:1

Horsepower:

280 PS (276 hp) @ 6400 rpm (JDM Spec)

Torque:

35.2 kg-m (345 Nm / 254 lb-ft) @ 4400 rpm (JDM Spec)

Performance

Redline:

7500 rpm

Fuel System

Fuel Delivery:

Multi-point Fuel Injection (MPI)

Fuel Type:

Unleaded Premium Gasoline (95 RON or higher recommended)

Turbocharger:

Mitsubishi TD05H-16G (Twin Scroll)

Intercooler:

Top-mounted air-to-air intercooler

🔧 Transmission

Standard

Type:

6-speed Manual Transmission

Gear Ratios:

Refer to manual for specific gear ratios (varies slightly by sub-model)

Optional

Type:

N/A (STi models were exclusively manual)

Features

All Wheel Drive System:

Driver Controlled Center Differential (DCCD)

Rear Differential:

Helical Limited Slip Differential (LSD)

Front Differential:

Open or Helical LSD (depending on sub-model/region)

📐 Dimensions

Exterior

Wheelbase:

2515 mm (99.0 in)

Length:

4405 mm (173.4 in)

Width:

1770 mm (69.7 in)

Height:

1440 mm (56.7 in)

Weights

Curb Weight:

Approx. 1400-1450 kg (3086-3197 lbs)

Gross Vehicle Weight Rating:

Refer to vehicle placard

🛡️ Safety Features

Ratings

NHTSA Front Impact:

Not rated for this specific year/trim in all markets, but generally performed well for its era.

IIHS Front Offset:

Not rated for this specific year/trim in all markets.

Active Features

Traction Control:

Subaru's Traction Control System (TRC)

Anti-lock Braking System (ABS) - 4-wheel disc brakes

Dccd:

Driver Controlled Center Differential for torque distribution management

Passive Features

Airbags:

Driver and passenger front airbags

Seatbelts:

3-point front and rear seatbelts, pre-tensioners

Body Structure:

Reinforced chassis and crumple zones

💡 Technology Features

Infotainment

Audio System:

Factory CD player with radio, potentially basic cassette player depending on trim.

Instrument Cluster:

Analog gauges including tachometer, speedometer, fuel level, coolant temperature, boost gauge (often integrated).

Driver Assistance

Cruise Control:

Standard electronic cruise control system.

Limited Slip Differentials:

Advanced AWD system with DCCD and LSDs for enhanced traction and handling.

Connectivity

Auxiliary Input:

Unlikely on factory units for this era. Aftermarket head unit upgrades are common.

🔧 Maintenance

Service Intervals

Oil Change:

Every 3,000-5,000 miles or 3-6 months, depending on driving conditions (severe vs. normal).

Engine Oil Filter Replacement:

Concurrent with oil changes.

Air Filter Replacement:

Every 15,000-30,000 miles or annually.

Spark Plug Replacement:

NGK PFR7B (or equivalent) recommended every 30,000 miles for performance.

Coolant Flush:

Every 30,000-60,000 miles or 2-4 years.

Transmission Fluid Change:

Every 30,000-60,000 miles, especially for performance driving.

Differential Fluid Change:

Every 30,000-60,000 miles.

Fluid Specifications

Engine Oil:

0W-40 or 5W-40 Synthetic API SN/SN PLUS or ACEA A3/B4 recommended for performance applications. 5W-30 conventional may be specified for standard use.

Transmission Fluid:

API GL-5, SAE 75W-90 Synthetic Gear Oil.

Rear Differential Fluid:

API GL-5, SAE 75W-90 Synthetic Gear Oil (with LSD additive if applicable).

Coolant:

Subaru Super Coolant (Blue) or equivalent ethylene glycol-based coolant with corrosion inhibitors. 50/50 mix with distilled water.

Brake Fluid:

DOT 3 or DOT 4 High-Temperature Brake Fluid.

Known Issues

Piston Ring Land Cracking:

Common on early EJ207 engines, particularly with aggressive tuning or high mileage. Manual should cover inspection and replacement procedures.

Head Gasket Leaks:

While less prevalent than in some other Subaru models, it can occur. Manual will detail replacement.

Clutch Wear:

Due to the performance nature, clutches can wear faster with hard use. Manual covers replacement and adjustment.

Turbocharger Failure:

Can be caused by poor lubrication or debris. Manual covers diagnosis and rebuild/replacement.

Power Steering Pump Leaks:

Can develop leaks over time. Manual details inspection and replacement.

📚 Vehicle History

Brand Heritage

Rally Dominance:

Subaru's extensive success in the World Rally Championship (WRC) with Colin McRae, Richard Burns, and Petter Solberg

Model Evolution

Second Generation Launch:

Introduced in 2000 for the 2001 model year, marking a significant redesign from the GC/GF generation.

Gd Gg Platform:

This generation (GD for sedan, GG for wagon) featured a more aerodynamic and aggressive styling, a stiffer chassis, and advanced AWD systems.

Production

Manufacturing Location:

Japan

Production Period:

2000-2007 (for GD/GG generation)

🏆 Awards & Recognition

Recognitions

Performance Acclaim:

Consistently praised by automotive journalists for its handling, acceleration, and rally-inspired performance.

Rally Homologation Status:

The Impreza WRX STi is a homologation special, designed to meet the requirements for WRC competition, signifying its performance pedigree.

Ratings

Enthusiast Following:

Maintains a very strong and dedicated enthusiast following globally.