Positioning:
        
        
            The Mazda Miata (MX-5) established itself as a benchmark for affordable, lightweight, rear-wheel-drive sports cars, offering pure driving engagement. This manual caters to owners and technicians seeking in-depth knowledge to maintain and repair these iconic vehicles.
        
     
    
    
        
            Competitors:
        
        
            Competed against vehicles like the Toyota MR2, Honda S2000 (later years), and various European roadsters, but its unique combination of affordability, reliability, and driving feel set it apart.
        
     
    
    
        
            Appeal:
        
        
            Renowned for its balanced chassis, responsive steering, and the 'Jinba Ittai' (horse and rider as one) driving philosophy. This manual provides the technical backbone to preserve these characteristics.
        
     
 
    
    
    
        
            Years Covered:
        
        
            1990, 1991, 1992, 1993, 1994, 1995, 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
        
     
    
    
        
            Estimated Page Count:
        
        
            Thousands (indicative of comprehensive factory documentation)
        
     
    
    
        
            Type:
        
        
            Factory Service Repair Manual
        
     
    
    
    
    
 
    
    
    
        
            Engine:
        
        
            Complete service, repair, and diagnostics for all engine variants within the covered years.
        
     
    
        
            Transmission:
        
        
            Detailed information on manual and automatic transmissions, including overhaul and repair procedures.
        
     
    
        
            Brake System:
        
        
            Comprehensive coverage of ABS, disc brakes, parking brake, fluid replacement, and component repair.
        
     
    
        
            Electrical System:
        
        
            Extensive wiring diagrams, component testing, diagnostic procedures, and repair for all electrical systems.
        
     
    
        
            Suspension:
        
        
            Detailed repair and alignment procedures for front and rear suspension components, including springs, shocks, and bushings.
        
     
    
        
            Steering:
        
        
            Service and repair of the power steering system, steering column, and steering rack.
        
     
    
        
            Cooling System:
        
        
            Diagnosis, repair, and maintenance of the radiator, water pump, thermostat, and cooling fans.
        
     
    
        
            Fuel System:
        
        
            Information on fuel pumps, injectors, fuel pressure regulator, fuel filter replacement, and EFI system diagnostics.
        
     
    
        
            Emission System:
        
        
            Details on emissions control devices, catalytic converters, oxygen sensors, and diagnostic procedures for emission-related faults.
        
     
    
        
            HVAC System:
        
        
            Service and repair of the heating, ventilation, and air conditioning system, including refrigerant handling.
        
     
    
        
            Chassis And Body:
        
        
            Repair procedures for body panels, frame components, doors, and interior trim.
        
     
    
        
            Restraint System:
        
        
            Information on airbags, seatbelts, and related safety systems.
        
     
    
        
            Interior Systems:
        
        
            Procedures for interior component removal, installation, and repair.
        
     
    
        
            Differential And Drive Axles:
        
        
            Service and repair of the differential, drive shafts, and CV joints.
        
     
    
    
        
            Maintenance:
        
        
            Routine maintenance tasks, fluid changes, filter replacements, and inspections.
        
     
    
        
            Troubleshooting:
        
        
            Systematic diagnostic procedures for identifying and resolving common and complex issues.
        
     
    
        
            Repair:
        
        
            Detailed step-by-step repair instructions for all major vehicle systems and components.
        
     
    
        
            Overhaul:
        
        
            Complete overhaul procedures for engine, transmission, and other major mechanical assemblies.
        
     
    
        
            Diagnostics:
        
        
            Wiring diagrams, trouble codes, and diagnostic charts for electrical and electronic systems.
        
     
    
        
            Specifications:
        
        
            Torque specifications, clearances, fluid capacities, and other critical technical data.
        
     
    
    
        
            Depth:
        
        
            Comprehensive factory-level detail suitable for professional technicians and advanced DIY enthusiasts, covering everything from basic maintenance to complete engine rebuilds and electrical system diagnostics.
        
     
 
    
    
    
        
            Engine Code Na:
        
        
            BP (1.8L)
        
     
    
        
            Displacement Na:
        
        
            1.8 Liters (1839 cc)
        
     
    
        
            Configuration Na:
        
        
            Inline 4-cylinder, DOHC, 16-valve
        
     
    
        
            Horsepower Na:
        
        
            Approx. 128-133 hp (depending on year and market)
        
     
    
        
            Torque Na:
        
        
            Approx. 110-115 lb-ft (depending on year and market)
        
     
    
    
        
            Engine Code Nb:
        
        
            BP-Z3 (1.8L), MSR-E (2.0L)
        
     
    
        
            Displacement Nb:
        
        
            1.8 Liters (1839 cc) / 2.0 Liters (1998 cc)
        
     
    
        
            Configuration Nb:
        
        
            Inline 4-cylinder, DOHC, 16-valve
        
     
    
        
            Horsepower Nb:
        
        
            Approx. 140-146 hp (1.8L), 170 hp (2.0L)
        
     
    
        
            Torque Nb:
        
        
            Approx. 118-120 lb-ft (1.8L), 140 lb-ft (2.0L)
        
     
    
    
        
            Type:
        
        
            Electronic Fuel Injection (EFI)
        
     
 
    
    
    
        
            Length Na:
        
        
            Approx. 155.7 inches (3955 mm)
        
     
    
        
            Width Na:
        
        
            Approx. 66.1 inches (1680 mm)
        
     
    
        
            Height Na:
        
        
            Approx. 48.2 inches (1225 mm)
        
     
    
    
        
            Length Nb:
        
        
            Approx. 157.3 inches (4000 mm)
        
     
    
        
            Width Nb:
        
        
            Approx. 67.7 inches (1720 mm)
        
     
    
        
            Height Nb:
        
        
            Approx. 49.4 inches (1255 mm)
        
     
    
    
        
            Curb Weight Na:
        
        
            Approx. 2150-2300 lbs (975-1043 kg)
        
     
    
    
        
            Curb Weight Nb:
        
        
            Approx. 2300-2500 lbs (1043-1134 kg)
        
     
 
    
    
    
        
            Crash Test Availability Na:
        
        
            Limited official crash test data from the era for this niche vehicle segment, but generally considered safe for its class.
        
     
    
    
        
            Features:
        
        
            Four-wheel disc brakes (standard on most models), optional ABS (Anti-lock Braking System) on later NA and NB models.
        
     
    
    
        
            Features:
        
        
            Reinforced A-pillars, driver and passenger airbags (standard from late NA/early NB onwards), seatbelt pretensioners.
        
     
 
    
    
    
        
            Features Na:
        
        
            Primarily basic audio systems (AM/FM radio, cassette player, optional CD player), manual climate controls. Focus is on driving experience, not advanced tech.
        
     
    
        
            Features Nb:
        
        
            Improved audio options, optional in-dash CD players, and more integrated HVAC controls. Later models may feature better speaker systems.
        
     
    
    
        
            Features:
        
        
            Limited driver assistance systems by modern standards. Key safety features include ABS (optional) and airbags.
        
     
    
    
        
            Features:
        
        
            No integrated Bluetooth or smartphone connectivity in these model years. Aftermarket solutions are common for modern connectivity.
        
     
 
    
    
    
        
            Oil Change Interval:
        
        
            Every 5,000 - 7,500 miles (8,000 - 12,000 km) or 6-12 months, using synthetic oil for optimal protection. Consult manual for specific grade.
        
     
    
        
            Timing Belt Replacement:
        
        
            Every 60,000 - 90,000 miles (96,000 - 144,000 km). Crucial due to interference engine design.
        
     
    
        
            Coolant Flush:
        
        
            Every 30,000 - 50,000 miles (48,000 - 80,000 km) or 2-3 years.
        
     
    
        
            Brake Fluid Flush:
        
        
            Every 2-3 years or 30,000 miles (48,000 km).
        
     
    
    
        
            Engine Oil Grade:
        
        
            5W-30 or 10W-30 (depending on climate), API SN or newer, ILSAC GF-5 or newer recommended. Consult manual for specific requirements.
        
     
    
        
            Coolant Type:
        
        
            Ethylene Glycol based, Mazda long-life coolant (or equivalent green or blue coolant). 50/50 mix with distilled water.
        
     
    
        
            Brake Fluid Type:
        
        
            DOT 3 or DOT 4.
        
     
    
    
        
            Rust:
        
        
            Common issue, particularly on older NA models, in areas prone to road salt. Check sills, wheel arches, and rocker panels.
        
     
    
        
            Oil Consumption:
        
        
            Some engines, especially with high mileage, may exhibit increased oil consumption. Regular checks are advised.
        
     
    
        
            Clutch Wear:
        
        
            Clutch assemblies can wear over time, especially with spirited driving. Symptoms include slipping or difficulty engaging gears.
        
     
    
        
            Cooling System Leaks:
        
        
            Hoses, radiator, and water pump can develop leaks over time. Monitor coolant levels and for any signs of coolant on the ground.
        
     
    
        
            Power Window Motors:
        
        
            Can be a failure point, particularly on higher mileage vehicles.
        
     
 
    
    
    
        
            Heritage:
        
        
            Mazda has a long history of producing reliable and enjoyable-to-drive vehicles, often emphasizing lightweight design and driver engagement, exemplified by cars like the Cosmo Sport and RX-7.
        
     
    
    
        
            Na Generation:
        
        
            First generation (NA, 1989-1997): Introduced the iconic lightweight roadster formula, powered by a 1.6L and later a 1.8L engine, known for its pop-up headlights and simple, pure driving experience.
        
     
    
        
            Nb Generation:
        
        
            Second generation (NB, 1998-2005): Featured a more aerodynamic and refined design, improved chassis rigidity, fixed headlights, and engine upgrades including a 1.8L and a 2.0L engine. It maintained the core driving dynamics.
        
     
    
    
        
            Manufacturing Location:
        
        
            Hofū, Yamaguchi, Japan
        
     
    
        
            Production Period:
        
        
            1989-2005 (for NA and NB generations)