🏷️ Basic Information Identification Make: Mitsubishi Model: Eclipse Generation: 1st Generation Codes Model Years Covered: 1990, 1991, 1992, 1993, 1994 👋 Introduction Market Position Original Segment: Sport Compact / Affordable Performance Target Audience: Enthusiasts seeking performance and style in a practical package. Competitive Analysis Key Competitors 1990S: Honda Civic Si, Acura Integra, Toyota Celica, Nissan Sentra SE-R, Ford Mustang (certain trims) Key Features Performance Variants: Available in naturally aspirated and turbocharged (GST/GSX) variants, offering a compelling power-to-weight ratio. Styling: Distinctive two-door coupe (and later hatchback) styling with a focus on aerodynamic lines. Platform Sharing: Shared platform and powertrain components with the Eagle Talon and Plymouth Laser, part of the Diamond-Star Motors joint venture. 📋 Manual Details Coverage Areas Primary Market: North America Trim Levels Covered: All available trims (e.g., GS, GS-X, RS, GST, GSX) Page Count Estimated Page Count: 1000+ Manual Type Manual Type: Workshop Repair Service Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Powertrain: Engine, Fuel System, Exhaust System, Cooling System, Ignition System, Lubrication System Drivetrain: Manual Transmission, Automatic Transmission, Transfer Case (AWD models), Driveshafts, CV Joints, Axles Suspension Steering: Front Suspension (MacPherson Strut), Rear Suspension (Multi-link), Power Steering System, Steering Gearbox/Rack and Pinion Brakes: Front Disc Brakes, Rear Disc Brakes, Anti-lock Braking System (ABS) (if equipped), Brake System Hydraulics Electrical: 12V Battery System, Charging System (Alternator), Starting System, Lighting System, Instrumentation, Power Windows/Locks, Audio System, ECU/ECM Diagnostics Body Chassis: Body Panels, Doors, Hood, Trunk, Bumpers, Interior Trim, Chassis Frame, Welding and Repair HVAC: Heating, Ventilation, Air Conditioning System Diagnosis and Repair Procedures Included Routine Maintenance: Oil Change, Filter Replacements, Spark Plug Service, Belt Replacement, Fluid Checks and Top-offs Troubleshooting: Diagnostic Flowcharts, Symptom-based Diagnosis, DTC Code Explanations (OBD-I) Repair And Rebuild: Engine Overhaul, Transmission Rebuild, Component Replacement (e.g., Alternator, Starter, Radiator), Brake Pad/Rotor Replacement Diagnostics: Electrical Circuit Diagrams, Sensor Testing, Actuator Testing, Scan Tool Usage Technical Depth Depth Of Coverage: Comprehensive; suitable for professional technicians and advanced DIY enthusiasts. Covers detailed disassembly, reassembly, specifications, and torque values. 📊 Manual Specifications File Format File Type: PDF (Portable Document Format) Searchability: Searchable Text (OCR layer recommended for best experience) Print Quality Print Readability: High-resolution scans suitable for printing key sections or the entire manual. Binding Type Binding Type: N/A (Digital PDF format) Paper Type Paper Type: N/A (Digital PDF format) ⚙️ Engine Specifications Primary Engine Engine Code 1: 4G63 (Naturally Aspirated) Engine Displacement 1: 2.0 Liters (1997cc) Engine Configuration 1: Inline 4-Cylinder, DOHC Horsepower 1: 135 hp @ 6000 rpm (approx.) Torque 1: 125 lb-ft @ 4000 rpm (approx.) Turbocharged Engine Engine Code 2: 4G63T (Turbocharged) Engine Displacement 2: 2.0 Liters (1997cc) Engine Configuration 2: Inline 4-Cylinder, DOHC, Turbocharged, Intercooled Horsepower 2: 195 hp @ 6000 rpm (approx.) Torque 2: 203 lb-ft @ 2500 rpm (approx.) Fuel System Fuel Delivery: Multi-Point Fuel Injection (MPI) Fuel Type: Unleaded Gasoline (87 Octane minimum, 91+ Octane recommended for Turbo) 🔧 Transmission Standard Standard Transmission Type: 5-Speed Manual Optional Optional Transmission Type: 4-Speed Automatic Features All Wheel Drive: Available on GSX and GST models (Full-Time Electronic All-Wheel Drive with Active Center Differential) Clutch Type: Hydraulic Actuation (Manual Transmission) 📐 Dimensions Exterior Length: Approx. 173.4 inches Width: Approx. 69.1 inches Height: Approx. 50.6 inches Wheelbase: Approx. 98.8 inches Weights Curb Weight: Approx. 2800-3200 lbs (Varies by trim and drivetrain) 🛡️ Safety Features Ratings NHTSA Rating Driver Front: Not available for this generation/era IIHS Rating: Not available for this generation/era Active Features ABS: Optional on lower trims, standard on performance models (GSX, GST) Passive Features Airbags: Driver-side airbag standard from 1990. Passenger airbag optional/later addition. Seat Belts: Three-point front seat belts, two-point rear seat belts (later models may have three-point rear) 💡 Technology Features Infotainment Audio System: Factory AM/FM Cassette player, optional CD player. Basic speaker configuration. Instrument Cluster: Analog gauges for speedometer, tachometer, fuel, coolant temperature. Warning lights for various systems. Driver Assistance Cruise Control: Optional on many trims. Traction Control: Not typically available on this generation. Connectivity OBD Standard: OBD-I (On-Board Diagnostics, First Generation) Diagnostics Interface: Diagnostic connector located under the dash, requires specialized code reader or jumper for retrieving codes. 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3 months (under normal driving conditions) Engine Oil Filter Replacement: Replace at every oil change Air Filter Replacement: Every 15,000 miles or 12 months Spark Plug Replacement: Every 30,000 miles (standard plugs), potentially longer for platinum/iridium Timing Belt Replacement: Every 60,000 miles or 4 years (CRITICAL for 4G63/4G63T engines to prevent catastrophic damage) Fluid Specifications Engine Oil Specification: API SG or SH, SAE 5W-30 or 10W-30 (refer to manual for exact viscosity based on temperature) Coolant Specification: Ethylene Glycol-based coolant, 50/50 mix with distilled water. Mopar/Mitsubishi Long Life Antifreeze/Coolant or equivalent. Transmission Fluid Manual: API GL-4, SAE 75W-90 or 80W-90 Gear Oil Transmission Fluid Automatic: ATF SP-III or...