🏷️ Basic Information Identification Make: Proton Model: Waja Engine Variant: 1.6L Engine Code: 4G18 Engine Manufacturer: Mitsubishi 👋 Introduction Market Position Vehicle Segment: Compact Sedan Target Market: Affordable family sedan, popular in Southeast Asian markets Competitive Analysis Key Competitors: Honda Civic, Toyota Corolla, Nissan Sentra, Mitsubishi Lancer (historically) Key Features Engineering Basis: Developed from the Mitsubishi Lancer Cedia platform Reliability: Leverages proven Mitsubishi powertrain technology Value Proposition: Offers a balance of performance, comfort, and affordability 📋 Manual Details Coverage Areas Manual Type: Factory Workshop Service Repair Manual (Engine Only) Language: English Format: PDF Intended Audience: Proton/Mitsubishi Technicians, Automotive Enthusiasts Page Count Page Count Estimated: Comprehensive (Exact count not specified but implied to be extensive) 📖 Manual Coverage Systems Covered Engine Mechanical: Complete overhaul and repair procedures for the 4G18 engine Engine Electrical: Ignition system, fuel injection system, sensors, actuators, ECU troubleshooting Cooling System: Radiator, thermostat, water pump, hoses, fan system diagnosis and repair Lubrication System: Oil pump, oil filter, oil pan, oil passages, oil pressure troubleshooting Fuel System: Fuel pump, injectors, fuel lines, fuel pressure regulator, fuel tank diagnosis and repair Intake System: Air filter, throttle body, intake manifold, vacuum hoses, emissions control components Exhaust System: Exhaust manifold, catalytic converter, muffler, exhaust sensors (including O2 sensors) Engine Management System: ECU (Engine Control Unit) diagnosis, sensor data interpretation, component testing Procedures Included Disassembly Reassembly: Detailed step-by-step procedures for all engine components Troubleshooting: Systematic diagnostic flowcharts for common and uncommon engine faults Maintenance: Routine maintenance tasks, inspection points, and service intervals Repair: Specific repair instructions for major and minor engine components Component Testing: Methods for testing individual sensors, actuators, and mechanical components Torque Specifications: Precise torque values for all critical fasteners Measurements Clearances: Specifications for piston ring gap, bearing clearances, valve lash, etc. Timing Procedures: Camshaft timing, crankshaft timing, and belt/chain replacement procedures Technical Depth Depth Level: Advanced diagnostics and full engine rebuild procedures Diagnostic Charts: Inclusion of detailed wiring diagrams and diagnostic trees Special Tools: Identification and usage of specialized tools required for specific repairs 📊 Manual Specifications File Format File Type: PDF Searchability: Likely text-searchable, allowing for quick information retrieval Print Quality Print Readability: Designed for clarity and ease of use when printed Graphics Quality: High-quality diagrams, illustrations, and photographs Binding Type Binding: N/A (Digital PDF Format) Paper Type Paper Type: N/A (Digital PDF Format) Manual Authenticity Authenticity: Factory Original (Not a scanned copy, indicating high fidelity) ⚙️ Engine Specifications Primary Engine Engine Type: Inline 4-cylinder, DOHC, 16-valve Displacement: 1584 cc (1.6 Liters) Bore X Stroke: 78.0 mm x 83.0 mm Compression Ratio: 9.5:1 (Typical for 4G18) Fuel Delivery: Electronic Fuel Injection (EFI) - Multi-point Ignition System: Distributorless Ignition System (DIS) or Distributor-type (depending on specific model year/market) Performance Horsepower Peak: Approx. 101-107 PS @ 6000 rpm (Varies by market and tuning) Torque Peak: Approx. 137-140 Nm @ 3000-3500 rpm (Varies by market and tuning) Fuel System Fuel Type: Unleaded Gasoline Fuel Tank Capacity: Approximately 50 Liters 🔧 Transmission Standard Transmission Type Standard: 5-Speed Manual Transmission Optional Transmission Type Optional: 4-Speed Automatic Transmission Features Transmission Fluid Type: Refer to manual for specific ATFs (e.g., ATF SP-III or equivalent) Clutch Type: Dry single plate (Manual Transmission) 📐 Dimensions Exterior Length: Approx. 4530 mm Width: Approx. 1730 mm Height: Approx. 1425 mm Wheelbase: Approx. 2600 mm Weights Curb Weight: Approx. 1200-1250 kg Gross Vehicle Weight: Varies by trim and options 🛡️ Safety Features Ratings Crash Test Ratings: Varies by market; Euro NCAP or local equivalents would apply Active Features ABS: Available on higher trims or as an option Ebs: Electronic Brake-force Distribution (often paired with ABS) Passive Features Airbags: Driver and Front Passenger airbags standard or optional depending on year/market Seatbelts: Pre-tensioner seatbelts for front occupants Chassis Structure: Reinforced safety cell construction 💡 Technology Features Infotainment Infotainment System: Typically base-level audio systems with CD player and radio; higher trims may have upgraded systems Driver Assistance Driver Assistance Features: Limited by era of design; primarily focused on passive safety Connectivity Connectivity Options: Basic analog connectivity, no modern Bluetooth or USB integration unless aftermarket 🔧 Maintenance Service Intervals Oil Change Interval: Every 5,000 - 10,000 km or 6-12 months (refer to manual for exact specification) Engine Oil Filter Replacement: With every oil change Spark Plug Replacement: Refer to manual for interval (e.g., 40,000 - 60,000 km for standard plugs) Timing Belt Replacement: Refer to manual for interval (e.g., 80,000 - 100,000 km or 5-7 years) Fluid Specifications Engine Oil Type: API SG/SH/SJ or higher, SAE 10W-30 or 10W-40 (refer to manual) Engine Oil Capacity: Approx. 3.9 - 4.2 Liters with filter (refer to manual) Coolant Type: Ethylene Glycol based antifreeze, typically a 50/50 mix with distilled water Brake Fluid Type: DOT 3 or DOT 4 (refer to manual) Known Issues Engine Mounts: Wear and tear over time, leading to increased vibration Oxygen Sensors: Can...