The Mitsubishi 3000GT / GTO, produced in 1990, represents a pinnacle of Japanese sports car engineering, designed to compete with established European performance vehicles. This flagship model offered advanced technology and impressive performance, available in both Naturally Aspirated (NA) and Twin Turbo (TT) variants. Key features include its sophisticated multi-link suspension, aerodynamic design, and optional Active Four-Wheel Steering (AWS), all contributing to its dynamic capabilities and distinctive market position. The 3000GT/GTO was recognized with prestigious awards such as Car and Driver's Ten Best for 1991 and MotorTrend's Import Car of the Year for 1991, underscoring its innovation and appeal. This comprehensive service repair manual provides extensive coverage for the Mitsubishi 3000GT/GTO, detailing everything from basic maintenance procedures and scheduled service intervals to complex diagnostics and full component rebuilds. It covers all major mechanical and electrical systems, including the engine (both NA and Twin Turbo variants), transmission, brakes, suspension, and electrical systems, complete with detailed wiring diagrams. The manual is designed to assist professional technicians, dedicated DIY mechanics, and owners in maintaining, troubleshooting, and repairing their vehicle, ensuring optimal performance and longevity. Its professional-level depth makes it an indispensable resource for all aspects of vehicle care. 🏷️ Basic Information Identification Make: Mitsubishi Model: 3000GT / GTO Year: 1990 Codes Chassis Code: Z15A (NA), Z16A (Twin Turbo) Engine Codes: 6G72 (3.0L V6 SOHC NA), 6G72TT (3.0L V6 DOHC Twin Turbo) 👋 Introduction Market Position Category: Japanese Sports Car / Grand Tourer Positioning: High-performance, technologically advanced flagship model. Competitive Analysis Competitors: Nissan 300ZX (Z32), Toyota Supra (Mk3), Mazda RX-7 (FC/FD), Chevrolet Corvette (C4). Key Features Unique Selling Points: Available in both Naturally Aspirated (NA) and Twin Turbo (TT) variants, sophisticated multi-link suspension, advanced aerodynamic features (active aerodynamics on later models, but precursor features present), optional four-wheel steering (AWS). Purpose Target Audience: Professional technicians, serious DIY mechanics, and owners dedicated to maintaining and restoring their Mitsubishi 3000GT/GTO. 📋 Manual Details Coverage Areas Coverage: Full Service Repair, Maintenance, Diagnostics, Wiring Diagrams Page Count Estimated Page Count: Extensive (typical full service manuals for this era range from 1500-3000+ pages) Manual Type Type: Full Service Repair Manual Language Language: English Format Format: PDF Download 📖 Manual Coverage Systems Covered Engine: Complete engine overhaul, timing belt replacement, cooling system, lubrication system, fuel system, emissions control, turbocharger system (for Twin Turbo models). Transmission: Manual and Automatic transmission overhaul, fluid changes, clutch service, driveshaft and differential service. Brakes: Front and Rear brake system diagnostics, pad/rotor replacement, caliper service, ABS system (where applicable), brake fluid replacement. Suspension: Front and Rear suspension component replacement, shock absorber/strut service, steering system (power steering, steering rack, tie rods), alignment procedures. Electrical: Complete electrical system diagnostics, starting and charging systems, lighting, instrument cluster, power accessories, ECU and sensor troubleshooting, comprehensive wiring diagrams. Bodywork: Body panel removal/installation, door and window mechanisms, interior trim, HVAC system, exterior lighting and trim, body repair and corrosion prevention. Procedures Included Diagnostics: On-board diagnostic (OBD) system troubleshooting, fault code interpretation, sensor testing, fuel system pressure testing, ignition system testing. Maintenance: Scheduled maintenance intervals, oil and filter changes, fluid checks and top-offs, spark plug replacement, air filter replacement, drive belt inspection and replacement. Repair: Detailed step-by-step repair procedures for all major mechanical and electrical components, including engine rebuilds, transmission overhauls, suspension component replacement, and electrical system repairs. Rebuilding: Comprehensive instructions for rebuilding major components such as the engine, transmission, and differential, including specifications for clearances, torque values, and component tolerances. Restoration: Guidance for restoration projects, including advice on parts sourcing, bodywork, interior refurbishment, and mechanical system overhauls. Technical Depth Depth: Professional-level, covering everything from basic fluid changes to complete engine and transmission rebuilds. Includes detailed diagnostic procedures and wiring diagrams. 📊 Manual Specifications File Format Format: PDF Searchability: Likely text-searchable, facilitating quick information retrieval. Print Quality Printability: Full Printable Binding Type Binding: N/A (Digital PDF Download) Paper Type Paper Type: N/A (Digital PDF Download) Delivery Delivery Method: Instant Download Requirements Software Requirements: Adobe PDF Reader, WinRAR (for potential archive extraction) Compatibility Operating Systems: All Versions of Windows & Mac ⚙️ Engine Specifications Primary Engine Engine Type: 6G72 V6 Displacement: 2,972 cc (3.0 Liters) Performance Na Horsepower Na: 222 hp @ 6000 rpm (US Spec) Torque Na: 200 lb-ft @ 4500 rpm (US Spec) Performance Tt Horsepower Tt: 300 hp @ 6000 rpm (US Spec), 280 hp (JDM Spec) Torque Tt: 307 lb-ft @ 3000 rpm (US Spec), 297 lb-ft (JDM Spec) Fuel System Fuel Delivery: Multi-point Fuel Injection (MPI) Turbocharger: Twin Garrett T25 turbochargers (on TT models) Valvetrain Configuration: SOHC 2 valves per cylinder (NA), DOHC 4 valves per cylinder (TT) 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission (with sport modes) Features Tt Drivetrain: All-Wheel Drive (AWD) with Active Transfer Case (on TT models) Features Na Drivetrain: Front-Wheel Drive (FWD) (on NA models), optional All-Wheel Drive (AWD) was...