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Introduction
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Market Position
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Positioning:
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The 1994 Mazda Protegé (BG generation) was positioned as a reliable, economical, and sporty compact car, competing against rivals like the Honda Civic, Toyota Corolla, and Nissan Sentra. It offered a good balance of practicality and driving dynamics.
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Competitive Analysis
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Comparison:
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The Protegé of this era was known for its responsive handling, especially with the optional sport suspension, and often praised for its straightforward engineering, making it a popular choice for DIY enthusiasts.
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Key Features
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Features:
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This workshop manual provides dealership-level repair and maintenance information, crucial for any owner aiming to keep their 1994 Protegé in optimal condition. It's specific, not generic, offering detailed procedures and diagrams.
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Manual Coverage
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Systems Covered
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Engine:
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Engine Mechanical, Fuel System, Ignition System, Emission Control System, Cooling System, Lubrication System, Engine Performance Diagnostics
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Transmission:
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Manual Transmission, Automatic Transmission, Clutch, Drivetrain Components (Axles, CV Joints)
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Brakes:
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Hydraulic System, Disc Brakes, Drum Brakes, Parking Brake, ABS (if equipped)
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Suspension Steering:
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Front Suspension, Rear Suspension, Steering System, Power Steering System
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Electrical:
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Charging System, Starting System, Lighting System, Instrumentation, Wiper/Washer System, Power Windows/Locks, Audio System, Wiring Diagrams
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Body:
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Body Construction, Exterior Trim, Doors, Hood, Trunk, Bumpers, Interior Trim, Seats, HVAC System
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Procedures Included
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Maintenance:
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Scheduled Maintenance, Fluid Changes, Filter Replacements, Lubrication Points
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Diagnostics:
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Troubleshooting Guides, Symptom-Based Diagnostics, DTC (Diagnostic Trouble Code) Interpretation (OBDI)
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Repair:
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Component Removal and Installation, Major Overhauls, Component Adjustments
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Specifications:
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Torque Specifications, Clearances, Alignment Settings, Gasket/Seal Information
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Technical Depth
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Depth:
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Comprehensive: From basic fluid checks to full engine and transmission rebuilds, including electrical system troubleshooting and bodywork repair.
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Engine Specifications
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Primary Engine
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Engine Code Displacement Variants:
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Commonly featured the 1.5L SOHC (B5-DE) and 1.8L DOHC (BP-ZE) engines. The BP-ZE was renowned for its sporty performance.
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Performance
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Horsepower Torque Bp-Ze:
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The BP-ZE 1.8L DOHC typically produced around 125-130 hp and 135-140 lb-ft of torque, depending on specific market tuning.
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Horsepower Torque B5-De:
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The B5-DE 1.5L SOHC produced approximately 90-92 hp and 100-105 lb-ft of torque.
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Fuel System
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Injection Type:
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Electronic Fuel Injection (EFI)
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Engine Construction
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Block Head Material:
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Cast Iron Block, Aluminum Alloy Cylinder Head
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Ignition System
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Type:
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Distributor-based ignition system with electronic spark control.
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Cooling System
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Type:
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Pressurized liquid cooling system.
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Dimensions
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Exterior
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Wheelbase:
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Approximately 98.2 inches (2495 mm)
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Length:
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Approximately 165.0 inches (4190 mm)
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Width:
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Approximately 66.1 inches (1680 mm)
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Height:
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Approximately 54.5 inches (1385 mm)
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Weights
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Curb Weight Approx:
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2300 - 2600 lbs (1043 - 1180 kg), varies by model and equipment
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Gross Vehicle Weight Rating Approx:
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Approximately 3500 - 3800 lbs (1588 - 1724 kg)
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Cargo
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Trunk Capacity Approx:
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Approximately 11.8 cubic feet (334 liters)
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Safety Features
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Ratings
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NHTSA Front Impact Driver:
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Not rated or available for this model year, as NHTSA testing standards were less rigorous.
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NHTSA Front Impact Passenger:
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Not rated or available for this model year.
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Active Features
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ABS Availability:
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Optional on some trims, standard on higher performance variants like the GT-X
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Passive Features
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Airbags:
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Driver-side airbag was optional and not standard across all models.
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Seatbelts:
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Front 3-point adjustable seatbelts, rear lap and shoulder belts (depending on seating position).
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Chassis Features
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Body Structure:
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Unit-body construction with front and rear crumple zones.
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Maintenance
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Service Intervals
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Oil Change Interval:
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Every 3,000 - 5,000 miles (4,800 - 8,000 km) or 3-6 months, depending on driving conditions (refer to manual for precise guidance).
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Timing Belt Replacement:
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Recommended every 60,000 miles (96,000 km) or 4-5 years for both B5-DE and BP-ZE engines, as failure can cause catastrophic engine damage.
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Spark Plug Replacement:
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Typically every 30,000 - 60,000 miles (48,000 - 96,000 km), depending on plug type (copper vs. platinum).
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Fluid Specifications
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Engine Oil Type Capacity:
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API SG or SH, SAE 5W-30 or 10W-30 recommended. Capacity approx. 3.8-4.2 US quarts (3.6-4.0 L) for 1.5L, 4.2-4.5 US quarts (4.0-4.3 L) for 1.8L. Consult manual for exact capacity.
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Coolant Type:
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Ethylene glycol-based antifreeze. Typically a 50/50 mix with distilled water. Consult manual for specific Mazda coolant type or equivalent.
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Brake Fluid Type:
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DOT 3 brake fluid.
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Known Issues
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Engine Peripherals:
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Common issues include aging distributor o-rings, coolant leaks from intake manifold gaskets, and worn engine mounts.
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Suspension Steering:
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Wear in tie rod ends, ball joints, and strut mounts can lead to steering looseness and noise. Sway bar bushings are also a common wear item.
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Electrical:
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Corrosion in electrical connectors, especially ground points, can cause intermittent issues. Headlight switch failure is also reported.
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Rust:
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As with many cars of this era, rust can be an issue, particularly in areas with harsh winters (e.g., rocker panels, wheel wells, rear quarter panels).
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