The Mazda Protege BG generation, produced from 1989 to 1994, offered a compelling blend of affordability and engaging driving dynamics, particularly in its performance-oriented GT trims. This compact car, available as both a sedan and hatchback, featured contemporary styling and was powered by a choice of reliable engines, including the spirited 1.8L DOHC BP-ZE and the efficient 1.6L SOHC B6. Known for its solid engineering and a reputation for dependability, the Protege stood out in a competitive market against rivals like the Honda Civic and Toyota Corolla, providing accessible performance and a refined driving experience for its segment. This comprehensive service and repair manual provides detailed guidance for the Mazda Protege BG generation, covering model years 1989 through 1994. It encompasses a wide array of technical information, including complete engine mechanicals, fuel and ignition systems, transmission servicing for both manual and automatic variants, brake and suspension systems, and all electrical components. The manual offers step-by-step procedures for routine maintenance, in-depth troubleshooting, and complex repair tasks, alongside essential technical specifications and diagnostic information. This resource is invaluable for owners and technicians aiming to maintain, diagnose, and repair the vehicle effectively, ensuring its longevity and optimal performance. 🏷️ Basic Information Identification Make: Mazda Model: Protege Generation: BG Codes Chassis Codes: BG8S, BG8P, BG8R, BG8Z Engine Codes: BP-ZE (1.8L DOHC), B6 (1.6L SOHC) 👋 Introduction Market Position Segment: Compact car, economy sedan/hatchback. Competitive Analysis Competitors: Honda Civic, Toyota Corolla, Ford Escort, Nissan Sentra. Key Features Value Proposition: Affordable, reliable transportation with engaging driving dynamics, especially in GT trim. Performance Variants: Included performance-oriented 'GT' trims featuring the 1.8L BP-ZE engine. 📋 Manual Details Coverage Areas Years Covered: 1989, 1990, 1991, 1992, 1993, 1994 Regions Covered: Global (specifics may vary by region, manual typically reflects North American specifications) Page Count Estimated Pages: 1000+ Manual Type Type: Service and Repair Manual Language Language: English Format Format: PDF 📖 Manual Coverage Systems Covered Engine Mechanical: Complete engine overhaul, cylinder head, pistons, crankshaft, timing belt, oil pump, lubrication system. Engine Performance: Fuel injection system (MPI), ignition system, emissions control systems, turbocharging (if applicable to specific trims). Transmission: Manual transmission (M5, G series), automatic transmission (FN4A-EL), clutch system, driveline components. Brakes: Front disc, rear drum or disc brakes, ABS (if equipped), hydraulic system, parking brake. Suspension Steering: Front struts, rear torsion beam or independent suspension, power steering system, wheel alignment specifications. Electrical: Battery, charging system, starting system, lighting, instrumentation, power windows/locks, body control modules, wiring diagrams. Body Chassis: Frame, body panels, doors, bumpers, glass, interior trim, HVAC system, cooling system. Procedures Included Maintenance: Oil changes, filter replacements, spark plug replacement, fluid checks and top-offs, belt adjustments. Troubleshooting: Diagnostic procedures for common drivability issues, electrical faults, and mechanical problems. Repair: Step-by-step instructions for component removal, installation, and repair for all major vehicle systems. Diagnostics: Diagnostic trouble codes (DTCs), on-board diagnostics (OBD-I) interpretation, component testing procedures. Specifications: Torque specifications for critical fasteners, measurement specifications, tolerances. Technical Depth Depth: Comprehensive: Covers routine maintenance to complete engine and transmission rebuilds, advanced electrical diagnostics. 📊 Manual Specifications File Format Quality: High-resolution PDF, searchable text, printable pages. Print Quality Clarity: Sharp text and clear diagrams for easy comprehension. Binding Type Binding: N/A (PDF format) Paper Type Paper: N/A (PDF format) ⚙️ Engine Specifications Primary Engine Engine 1 Displacement: 1.8 Liters Engine 1 Type: DOHC Inline-4, Naturally Aspirated Engine 1 Code: BP-ZE Engine 1 Horsepower: 125 hp @ 6000 rpm Engine 1 Torque: 115 lb-ft @ 4500 rpm Secondary Engine Engine 2 Displacement: 1.6 Liters Engine 2 Type: SOHC Inline-4, Naturally Aspirated Engine 2 Code: B6 Engine 2 Horsepower: 88-93 hp (depending on year/market) Engine 2 Torque: 90-97 lb-ft (depending on year/market) Fuel System Fuel Delivery: Electronic Fuel Injection (MPI) Fuel Type: Unleaded gasoline (87 octane recommended, 91+ for optimal performance in BP-ZE) 🔧 Transmission Standard Transmission Type Standard: 5-speed Manual Optional Transmission Type Optional: 4-speed Automatic (FN4A-EL) Features Clutch Type: Hydraulic actuation 📐 Dimensions Exterior Length: Approx. 165-168 inches (depending on body style) Width: Approx. 66.5 inches Height: Approx. 53-54 inches (sedan) / 53.5 inches (hatchback) Weights Curb Weight: Approx. 2400-2600 lbs (depending on configuration) Gross Vehicle Weight Rating: Approx. 3600-3800 lbs 🛡️ Safety Features Ratings NHTSA Driver Side Impact: Not widely available for this era, typically average for its class. IIHS Crash Test Results: Not widely available for this era, typically average for its class. Active Features ABS: Optional on select trims, standard on higher performance models. Passive Features Airbags: Driver's side airbag standard from 1990/1991 onwards, passenger airbag optional or unavailable. Seatbelts: 3-point front, 2-point rear (later models may have 3-point rear). 💡 Technology Features Infotainment Audio System: Factory AM/FM stereo with cassette player, optional CD player on higher trims. Basic speaker setup. Driver Assistance Cruise Control: Available on select trims. Connectivity Phone Integration: Not applicable for this era. 🔧 Maintenance Service Intervals...