🏷️ Basic Information Identification Make: Mazda Model: MX-5 Miata Generation: NA (First Generation) Codes Product Name Code: Mazda MX-5 MIATA Complete Workshop Repair Manual 1990-1993 👋 Introduction Market Position Segment: Lightweight sports car, roadster Philosophy: Jinba Ittai (horse and rider as one), driver-focused, affordable fun Competitive Analysis Key Competitors: Alfa Romeo Spider, Triumph Spitfire (historical context), maybe early Miatas from other marques Key Features Driving Dynamics: Exceptional handling, balanced chassis, responsive steering, RWD layout Convertible Top: Simple, manual soft-top operation Reliability: Known for its robust mechanicals and overall reliability compared to contemporaries 📋 Manual Details Coverage Areas Vehicle Years: 1990, 1991, 1992, 1993 Engine Variants: All gasoline engine variants Trim Levels: All trim levels Page Count Estimated Pages: 1500+ Manual Type Type: Complete Workshop Repair Manual Purpose: Service, Repair, Maintenance, Diagnostics, Troubleshooting Language Language: English Format Format: Digital Download (PDF) Device Compatibility: PC, MAC, Tablets, Smartphones 📖 Manual Coverage Systems Covered Engine Mechanical: Full overhaul, internal components, cylinder head, block, pistons, crankshaft, camshafts Engine Fuel System: Fuel injection system (EFI), fuel pump, injectors, fuel pressure regulator, lines Engine Ignition System: Ignition coils, spark plugs, distributor (if applicable), ECU control Engine Cooling System: Radiator, water pump, thermostat, hoses, coolant flow, fan control Engine Lubrication System: Oil pump, oil filter, oil pan, lubrication passages Emission Control: Exhaust gas recirculation (EGR), catalytic converter, O2 sensors, evaporative emission control Transmission Manual: Clutch system, gearbox internal components, shift linkage, fluid changes Transmission Automatic: Not applicable for this generation's primary focus, but may cover availability Drivetrain Rear Axle: Differential, drive shafts, axle shafts, seals Suspension Front: Double wishbone, shock absorbers, springs, control arms, bushings, alignment Suspension Rear: Independent multi-link, shock absorbers, springs, control arms, bushings, alignment Steering System: Rack and pinion, power steering pump, fluid, steering column Brakes Front: Disc brakes, calipers, rotors, pads, brake lines Brakes Rear: Disc brakes, calipers, rotors, pads, brake lines Parking Brake: Mechanism, cables, adjustment Electrical System Battery: Battery service, charging system, alternator Electrical System Lighting: Headlights, taillights, turn signals, interior lighting, bulb replacement Electrical System Wiring: Wiring diagrams, connector identification, harness repair Body Exterior: Body panels, doors, hood, trunk, convertible top mechanism, bumpers Body Interior: Dashboard, seats, trim panels, carpeting, sound insulation HVAC System: Heating, ventilation, air conditioning (AC) system, refrigerant, controls Body Control Modules: Window regulators, door locks, wipers, horn Procedures Included Preventative Maintenance: Oil changes, fluid checks, filter replacements, brake inspections, tire rotations Troubleshooting: Diagnostic flowcharts, symptom-based troubleshooting, common fault identification Engine Repair: Engine rebuild, timing belt replacement, head gasket repair, piston ring replacement Transmission Repair: Clutch replacement, gearbox overhaul, seal replacement Suspension Repair: Component replacement (shocks, springs, bushings), alignment procedures Brake Repair: Brake pad/rotor replacement, caliper overhaul, brake fluid flush, bleeding procedures Electrical Diagnostics: Component testing, circuit tracing, fuse/relay diagnosis Bodywork Repair: Panel replacement, convertible top adjustment/repair, minor dent repair HVAC Repair: AC system recharge, component replacement, leak detection Torque Specifications: All critical fastener torque values for engine, chassis, and body components Tightening Sequences: Specific bolt tightening sequences for critical assemblies (e.g., cylinder head) Technical Depth Depth: Comprehensive: From basic maintenance to full mechanical rebuilds and diagnostics Diagnostics: Detailed diagnostic procedures and fault code interpretation (where applicable) Special Tools: Identification and usage of specialized tools required for specific procedures 📊 Manual Specifications File Format Format Type: PDF Searchability: Text-searchable (OCR processed) Print Quality Resolution: High-resolution for clear text and diagrams Diagrams: Clear, detailed illustrations and schematics Binding Type Digital Binding: N/A (Digital Download) Paper Type Digital Paper: N/A (Digital Download) ⚙️ Engine Specifications Primary Engine Engine Code: B6-ZE (1.6L DOHC) Displacement: 1598 cc (1.6 Liters) Configuration: Inline 4-cylinder, DOHC, 16 valves Performance Horsepower 1990-1991: 116 hp @ 6500 rpm Torque 1990-1991: 100 lb-ft @ 5000 rpm Horsepower 1992-1993: 118 hp @ 6500 rpm (slight increase due to revised ECU/intake) Torque 1992-1993: 100 lb-ft @ 5000 rpm Fuel System Type: Electronic Fuel Injection (EFI) Recommended Fuel: 87 Octane (91 RON) Engine Management ECU Type: ECU controlled ignition and fuel injection 🔧 Transmission Standard Type: 5-speed Manual Transmission Optional Type: 4-speed Automatic Transmission (less common) Features Manual Gear Ratios: Specific ratios provided in manual (e.g., 1st: 3.136, 2nd: 1.839, 3rd: 1.307, 4th: 1.000, 5th: 0.813, Reverse: 3.115) Manual Fluid Type: Dexron II or equivalent (check manual for exact specification and quantity) 📐 Dimensions Exterior Length: 3950 mm (155.5 in) Width: 1675 mm (65.9 in) Height: 1235 mm (48.6 in) Wheelbase: 2265 mm (89.2 in) Front Track: 1420 mm (55.9 in) Rear Track: 1430 mm (56.3 in) Weights Curb Weight Manual: Approx. 1000-1050 kg (2200-2315 lbs) depending on trim Gross Vehicle Weight Rating: Provided in manual 🛡️ Safety Features Ratings NHTSA Front Impact: 4-star (for 1992 model year) IIHS Side Impact: N/A (Not tested extensively in this era) Active Features ABS: Optional on early models, standard on later models (check specific year) Passive Features Airbags: Driver's side airbag standard from...