Segment:
Compact Performance Sedan/Wagon
Target Audience:
Enthusiast owners, performance tuners, professional mechanics specializing in Subaru vehicles.
Key Competitors:
Mitsubishi Lancer Evolution, Ford Escort RS Cosworth, Toyota Celica GT-Four.
Performance Focus:
Designed for the rally-bred WRX variant, emphasizing performance tuning, maintenance, and repair specific to its turbocharged engine and AWD system.
All Wheel Drive:
Detailed information on the Subaru Symmetrical All-Wheel Drive system and its mechanical components.
Engine:
Detailed diagnostics, overhaul procedures, fuel injection, ignition systems, emissions control, cooling system, lubrication system, turbocharger system.
Transmission:
Manual transmission (5-speed) overhaul, clutch system, drivetrain, limited-slip differentials (front and rear).
Brakes:
Hydraulic system, ABS (Anti-lock Braking System) troubleshooting and repair, brake pad/rotor replacement, caliper overhaul.
Suspension Steering:
Front and rear suspension geometry, struts, coil springs, bushings, power steering system, wheel alignment specifications.
Electrical:
Wiring diagrams, starter, alternator, battery, lighting systems, instrument cluster, ECU (Engine Control Unit) diagnostics, body electrical.
Body Chassis:
Body panel removal and installation, interior trim, HVAC (Heating, Ventilation, and Air Conditioning) system, chassis specifications, rust prevention.
Maintenance:
Routine maintenance tasks, oil changes, filter replacements, fluid checks, spark plug replacement, timing belt replacement procedure.
Diagnostics:
Troubleshooting charts, symptom-based diagnostics, OBD-I (On-Board Diagnostics) codes interpretation and clearing.
Repair:
Component-level repair, engine rebuild steps, transmission rebuild steps, suspension component replacement, bodywork repairs.
Installation:
Accessory installation guides, performance upgrade installation considerations.
Depth:
Comprehensive: Covers everything from basic maintenance to full engine and transmission rebuilds, including detailed electrical schematics and diagnostic procedures.
Engine Type:
2.0L Flat-4 Turbocharged DOHC
Horsepower:
Approx. 237 hp (177 kW) @ 6000 rpm (JDM spec)
Torque:
Approx. 244 lb-ft (330 Nm) @ 4800 rpm (JDM spec)
Bore X Stroke:
92.0 mm x 75.0 mm
Induction:
Sequential multi-point fuel injection (MPI) with Garrett turbocharger
Fuel Type:
Unleaded gasoline, Octane rating 95 RON (recommended)
Type:
5-speed Manual Transmission (TY753VW1AA / TY753VW2AA)
Type:
None offered for WRX models
Drive System:
Symmetrical All-Wheel Drive with viscous center differential and rear helical limited-slip differential.
Gear Ratios:
Detailed gear ratios for all 5 speeds and reverse are included in the manual.
Length:
4,350 mm (Sedan), 4,385 mm (Wagon)
Height:
1,440 mm (Sedan), 1,420 mm (Wagon)
Curb Weight:
Approx. 1,270 kg (Sedan), 1,320 kg (Wagon)
Crash Test Results:
Limited official testing for this specific era and performance variant. Manual focuses on mechanical safety systems.
ABS:
Standard Anti-lock Braking System (ABS) on WRX models, with detailed diagnostic procedures.
AWD:
Symmetrical All-Wheel Drive system enhances traction and stability.
Airbags:
Driver's airbag standard.
Seatbelts:
Three-point front and rear seatbelts.
Oil Change:
Every 5,000 km or 6 months, whichever comes first.
Air Filter:
Inspect every 10,000 km, replace as needed.
Spark Plugs:
Replace every 30,000 km (platinum plugs).
Timing Belt:
Replace every 90,000 km or 6 years, whichever comes first.
Engine Oil:
API SG or SH, SAE 10W-30 or 5W-30 (depending on climate). Capacity: 4.2 L with filter.
Coolant:
Subaru Genuine Coolant (Blue) or equivalent P-HOAT coolant. 50/50 mix with distilled water. Capacity: 7.3 L.
Transmission Fluid:
API GL-5, SAE 75W-90 Gear Oil. Capacity: 3.5 L.
Differential Fluid:
API GL-5, SAE 90 Gear Oil. Front Capacity: 1.3 L, Rear Capacity: 1.0 L.
Head Gaskets:
While less common on EJ20G than later EJ25, manual provides detailed procedures for inspection and replacement.
Turbo Wear:
Manual includes procedures for turbocharger inspection, maintenance, and replacement due to potential wear from spirited driving.
Oil Leaks:
Common areas for oil leaks (e.g., cam seals, crank seals) are detailed with repair procedures.
Subaru Legacy:
The Impreza WRX builds upon Subaru's rally heritage established by the Legacy RS.
Gc Gf Generation:
This manual covers the first generation (GC/GF) Impreza, specifically the high-performance WRX variant.
Launch Year:
1992 (Impreza platform), 1992 (WRX variant launched in Japan)
Manufacturing Location:
Japan
