The Mitsubishi 3000GT, model code Z16A for the Twin Turbo variant, represents a pinnacle of Japanese sports car engineering from its 1991 debut. This premium coupe was designed to rival European exotics, offering a sophisticated blend of performance and advanced technology. Key features include its potent V6 engine, available all-wheel drive with advanced differentials, and an innovative active aerodynamics system comprising an adjustable front spoiler and rear wing for enhanced stability. Many models also offered four-wheel steering (4WS) and electronically controlled suspension (ECS), underscoring its commitment to cutting-edge automotive innovation and driver engagement. This comprehensive factory service and repair manual provides detailed information essential for maintaining and repairing the Mitsubishi 3000GT. It covers all major vehicle systems, including engine mechanical and performance, manual and automatic transmissions, drivetrain, suspension, brakes, steering, and the complete electrical system. Within its extensive pages, you will find step-by-step repair procedures, diagnostic troubleshooting guides for common issues, detailed technical specifications, and crucial safety guidelines. This resource is invaluable for owners, technicians, and mechanics seeking to ensure the optimal performance and longevity of their 1991 Mitsubishi 3000GT. 🏷️ Basic Information Identification Make: Mitsubishi Model: 3000GT Year: 1991 Codes Internal Model Code: Z16A (for Twin Turbo) 👋 Introduction Market Position Positioning: A premium, technologically advanced Japanese sports car of its era, aiming to compete with European exotics Competitive Analysis Competitors: Dodge Stealth (rebadged 3000GT), Nissan 300ZX (Z32), Toyota Supra (Mk3 and early Mk4), Mazda RX-7 (FC and FD), Porsche 944, Chevrolet Corvette (C4) Key Features Aerodynamics: Sophisticated active aerodynamics system including an active front spoiler and an active rear wing for improved high-speed stability and drag reduction Drivetrain: Available in front-wheel drive (FWD) and all-wheel drive (AWD) configurations, with the AWD models featuring a sophisticated viscous coupling center differential and optional active yaw control (later models) Engine Layout: Longitudinal engine placement in a compact V6 configuration Technology: Early adoption of advanced technologies like four-wheel steering (4WS) on some models, electronic controlled suspension (ECS), and sophisticated engine management 📋 Manual Details Coverage Areas Coverage Scope: Comprehensive factory service and repair Page Count Estimated Page Count: Over 2000 pages (typical for full factory service manuals) Manual Type Type: Factory Service Manual / Workshop Manual Language Language: English Format Format: Downloadable PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Engine assembly, disassembly, cylinder head, crankshaft, pistons, connecting rods, timing system, lubrication system, cooling system, fuel injection, emissions control Engine Performance: Turbocharger system, intercooler system, boost control, ignition system, exhaust system Transmission Manual: Manual transmission (Getrag 5-speed F5M33) - assembly, disassembly, internal components, shift mechanism Transmission Automatic: Automatic transmission (INVECS-II 4-speed) - assembly, disassembly, hydraulic control, electronic control unit (ECU) interface, torque converter Drivetrain: Front-wheel drive (FWD) and All-wheel drive (AWD) systems, transfer case, propeller shaft, drive shafts, CV joints, differential (front and rear) Suspension: Front suspension (MacPherson strut), Rear suspension (Multi-link), dampers, springs, bushings, anti-roll bars, Active Aerodynamics (active front spoiler, active rear wing) Brakes: Front and rear disc brakes, ABS (Anti-lock Braking System) components and diagnostics, brake calipers, rotors, hydraulic lines, parking brake Steering: Power steering system, steering gear, steering column, wheel alignment specifications Electrical System: Battery, charging system (alternator), starting system (starter), lighting system (headlights, taillights, interior), fuse boxes, relays, wiring diagrams, multiplex communication system Engine Control System: ECU (Engine Control Unit) functions, sensors (MAP, TPS, O2, ECT, CKP, CMP), actuators (injectors, ignition coils), diagnostic trouble codes (DTCs), emission control systems (EGR, EVAP) Body Exterior: Body panel removal and installation, doors, hood, trunk lid, bumpers, glass, seals, Active Aerodynamics system components Body Interior: Dashboard, seats, interior trim panels, HVAC system (heating, ventilation, air conditioning), audio system, airbags (SRS system components and servicing - *caution advised*) Climate Control: AC compressor, refrigerant system, heater core, evaporator, controls, diagnosis Procedures Included Scheduled Maintenance: Oil change intervals, filter replacements, fluid checks and changes, spark plug replacement, belt inspection and replacement Routine Inspections: Visual checks of suspension, brakes, exhaust, belts, hoses, and electrical components Engine Repair: Complete engine rebuild procedures, piston ring replacement, bearing replacement, valve seat grinding, camshaft installation Transmission Repair: Manual and automatic transmission overhaul and repair, clutch replacement (manual), torque converter replacement (automatic) Suspension Component Replacement: Strut and shock absorber replacement, control arm bushings, ball joint replacement, power steering pump and rack replacement Brake Service: Brake pad and rotor replacement, brake fluid flush and bleeding, ABS system troubleshooting and component replacement Electrical Diagnostics: Wiring harness testing, sensor diagnosis, actuator testing, use of diagnostic tools, troubleshooting electrical faults using diagrams Troubleshooting: Systematic diagnostic procedures for common drivability issues, starting problems, overheating, electrical faults, and performance anomalies Fuel System Service: Fuel injector cleaning and replacement, fuel pump testing, fuel filter replacement, fuel pressure testing Cooling System Service: Radiator replacement, water pump replacement, thermostat replacement, coolant flush and refill Air Conditioning Service: Refrigerant recharge, leak detection, component replacement (compressor, condenser, evaporator) Wheel Alignment: Front...