The 1998 Toyota Supra (JZA80) stands as a pinnacle of Japanese sports car engineering, renowned for its potent performance, sophisticated design, and legendary reliability. Equipped with either the naturally aspirated 2JZ-GE or the formidable twin-turbocharged 2JZ-GTE inline-six engines, this vehicle offers exhilarating driving dynamics. Its robust construction, advanced features for its era, and iconic status make it a highly sought-after machine for enthusiasts and collectors alike, representing a significant chapter in automotive history. This comprehensive service and repair manual provides detailed, factory-level information essential for maintaining and repairing the 1998 Toyota Supra. Covering all major systems, including the engine, drivetrain, suspension, brakes, and electrical systems, it offers step-by-step procedures for maintenance, troubleshooting, and component replacement. With extensive troubleshooting guides, diagnostic procedures, torque specifications, and detailed wiring diagrams, this manual serves as an indispensable resource for owners, mechanics, and technicians seeking to preserve the performance and longevity of their Supra. 🏷️ Basic Information Identification Make: Toyota Model: Supra Year: 1998 Codes Chassis Code: JZA80 Engine Code: 2JZ-GE (Naturally Aspirated), 2JZ-GTE (Twin-Turbocharged) 👋 Introduction Market Position Market Position: The 1998 Toyota Supra (JZA80) is a legendary Japanese sports car, celebrated for its performance, engineering, and iconic design. This manual targets owners and enthusiasts who wish to maintain, repair, or restore their vehicles. Competitive Analysis Competitive Analysis: Competed against high-performance sports cars of its era like the Nissan 300ZX, Mazda RX-7, Mitsubishi 3000GT, Chevrolet Corvette, and Porsche 911. Its sophisticated engineering and powerful inline-six engines set it apart. Key Features Key Features: Licensed OE information, instant online access, detailed procedures, comprehensive system coverage, DIY-friendly interface. 📋 Manual Details Coverage Areas Coverage Areas: Comprehensive Service and Repair Page Count Page Count: Varies by specific sections, but equivalent to a full factory service manual. Manual Type Manual Type: Service and Repair Manual Software Language Language: English Format Format: PDF Download (Online Access) Access Period Access Period: 1 Year (with options for discounted extensions). Compatibility Compatibility: PC, Laptop, Smartphone, Tablet with internet connection and web browser. 📖 Manual Coverage Systems Covered Systems Covered: Engine Mechanical, Engine Electrical, Fuel System, Cooling System, Lubrication System, Exhaust System, Drivetrain (Transmission, Differential, Axles), Suspension (Front & Rear), Steering System, Brake System (Front & Rear), ABS, Body Electrical, HVAC System, Chassis Electrical, Wiring Diagrams, Body & Frame, Interior Components, Exterior Components, Diagnostic Procedures. Procedures Included Procedures Included: Scheduled Maintenance, Routine Inspections, Troubleshooting Guides, Diagnostic Procedures, Component Removal & Installation, Repair Procedures, Overhaul Procedures, Torque Specifications, Electrical System Diagnosis, Emissions System Repair, Clutch Replacement, Brake System Overhaul, Suspension Component Replacement, Engine Tuning, Drivetrain Service, Body Panel Alignment, Air Conditioning Service. Technical Depth Technical Depth: Factory-level diagnostic and repair procedures, suitable for both DIY enthusiasts and professional technicians. Covers everything from basic fluid changes to complete engine and transmission rebuilds. Diagnostic Tools Diagnostic Tools: Covers procedures for using OBD-I diagnostic codes and basic multimeter testing. May reference Toyota's specialized diagnostic tools of the era. Troubleshooting Troubleshooting: Extensive troubleshooting flowcharts and diagnostic trees for various systems, from engine misfires to electrical faults. Torque Specifications Torque Specifications: Detailed torque specifications for all major fasteners, including engine components, suspension, brakes, and chassis. Wiring Diagrams Wiring Diagrams: Comprehensive color-coded wiring diagrams for all electrical systems, including engine control, lighting, HVAC, audio, and power accessories. 📊 Manual Specifications File Format File Format: PDF Print Quality Print Quality: High-resolution, printable pages. Binding Type Binding Type: N/A (Digital Download) Paper Type Paper Type: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Primary Engine: 2JZ-GTE (3.0L Twin-Turbocharged Inline-6, 24-valve DOHC VVT-i) Secondary Engine Secondary Engine: 2JZ-GE (3.0L Naturally Aspirated Inline-6, 24-valve DOHC VVT-i) Performance 2Jzgte Horsepower 2Jzgte: 276 hp @ 5600 rpm (Japanese Spec); ~320 hp (US Spec) Torque 2Jzgte: 318 lb-ft @ 4800 rpm (Japanese Spec); ~315 lb-ft (US Spec) Performance 2Jzge Horsepower 2Jzge: 220 hp @ 5800 rpm Torque 2Jzge: 210 lb-ft @ 4800 rpm Fuel System Fuel System: Sequential Multi-Port Fuel Injection (SFI), twin Hitachi turbochargers (2JZ-GTE), intercooler. Block Material Block Material: Cast Iron Head Material Head Material: Aluminum Ignition System Ignition System: Electronic Ignition System (DIS) Compression Ratio Compression Ratio: 8.5:1 (2JZ-GTE), 10.5:1 (2JZ-GE) Oil Capacity Oil Capacity: 5.2 US qts (5.0 L) with filter change (typical for 2JZ-GTE). Timing Belt Type Timing Belt Type: Rubber timing belt (2JZ-GE and 2JZ-GTE). Variable Valve Timing Variable Valve Timing: VVT-i (Variable Valve Timing with intelligence) on both 2JZ-GE and 2JZ-GTE variants. 🔧 Transmission Standard Transmission Standard Transmission: 6-speed Getrag V160/V161 Manual Transmission (2JZ-GTE) Optional Transmission Optional Transmission: 4-speed Automatic Transmission (A340E) (2JZ-GE, optional on 2JZ-GTE in some markets) Clutch Type Clutch Type: Hydraulically Actuated Single Dry Plate (Manual) Transmission Fluid Spec Transmission Fluid Spec: API GL-4 or GL-5 (manual), ATF Dexron III (automatic). 📐 Dimensions Exterior Length Exterior Length: 4520 mm (178.0 in) Exterior Width Exterior Width: 1810 mm (71.3 in) Exterior Height Exterior Height: 1275 mm (50.2 in)...