🏷️ Basic Information Identification Make: Isuzu Model: Impulse Year: 1992 Generation Generation Designation: Second Generation (JP1) Codes Chassis Code: JT221F 👋 Introduction Market Position Market Position: The 1992 Isuzu Impulse (also known as the Piazza in some markets) was positioned as a stylish, compact sports coupe, competing with vehicles like the Mazda MX-3, Toyota Celica, and Mitsubishi Eclipse. It appealed to buyers looking for a more unique and performance-oriented option in the entry-level sporty coupe segment. Competitive Analysis Competitive Analysis: While not achieving the sales volumes of some competitors, the Impulse offered distinct styling, a reliable Japanese drivetrain, and available all-wheel-drive (AWD) on certain models, providing a niche appeal. This manual provides the necessary technical data to maintain and repair this distinctive vehicle, which is often overlooked by general repair shops. Key Features Key Features: Licensed OE information from RepairSurge, accessible online across multiple devices, year-long access with renewal options, covers a wide range of repair and maintenance tasks, ideal for DIY enthusiasts and professional mechanics. 📋 Manual Details Coverage Areas Manual Coverage Areas: Engine, Drivetrain, Brakes, Suspension, Steering, Electrical Systems, HVAC, Bodywork, Troubleshooting Page Count Manual Page Count: Online Access (Estimated 1000+ pages equivalent of factory documentation) Manual Type Manual Type: Service and Repair Manual Software Language Manual Language: English Format Manual Format: Web-based Software (Accessible via browser) 📖 Manual Coverage Systems Covered Systems Covered: Engine Mechanical, Engine Control Systems (ECU), Fuel System, Ignition System, Cooling System, Lubrication System, Exhaust System, Drivetrain (FWD/AWD), Clutch, Transmission (Manual/Automatic), Differentials, Axles, Suspension (Front/Rear), Steering System, Brake System (Front Disc/Rear Disc), ABS (if equipped), Electrical Distribution System, Lighting, Instrumentation, Wiper/Washer Systems, Power Accessories, HVAC (Heating, Ventilation, Air Conditioning), Body & Chassis Components, Interior Trim, Exterior Trim, Diagnostic Procedures Procedures Included Procedures Included: Routine Maintenance (Oil Changes, Filter Replacements, Spark Plugs), Component Inspection and Testing, Removal and Installation Procedures, Diagnostic Flowcharts, Troubleshooting Guides, Repair Procedures, Overhaul Procedures, Wiring Diagrams, Torque Specifications, Fluid Capacities and Specifications, Emission Control System Servicing, Wheel Alignment Specifications Technical Depth Technical Depth: Comprehensive, from basic owner maintenance to advanced engine and transmission overhauls. Includes diagnostic procedures and troubleshooting for complex electrical and mechanical issues. 📊 Manual Specifications File Format File Format: N/A (Web-based Access) Print Quality Print Quality: N/A (Digital Display) Binding Type Binding Type: N/A (Digital Access) Paper Type Paper Type: N/A (Digital Access) ⚙️ Engine Specifications Primary Engine Primary Engine Code: G200Z Engine Type: Inline 4-cylinder, DOHC Displacement: 1.998 liters (1998 cc) Bore X Stroke: 84.0 mm x 90.0 mm Compression Ratio: 9.2:1 Performance Horsepower: 130 hp @ 6000 rpm (approx.) Torque: 123 lb-ft @ 4000 rpm (approx.) Fuel System Fuel Delivery: Electronic Fuel Injection (EFI) Fuel Type: Unleaded Gasoline Engine Features Engine Management: ECU controlled ignition and fuel injection Timing Belt Interval: Refer to manual for specific mileage/time interval (typically 60,000 miles or 5 years) 🔧 Transmission Standard Standard Transmission Type: 5-Speed Manual Optional Optional Transmission Type: 4-Speed Automatic Features Drivetrain Options: Front-Wheel Drive (FWD), All-Wheel Drive (AWD - on specific trims) Fluid Specifications Manual Transmission Fluid: API GL-4, SAE 75W-90 (check manual for specific viscosity) Automatic Transmission Fluid: Dexron II or equivalent 📐 Dimensions Exterior Length: 167.7 inches (4259 mm) Width: 67.7 inches (1720 mm) Height: 49.8 inches (1265 mm) Wheelbase: 98.4 inches (2499 mm) Weights Curb Weight: Approx. 2600-2800 lbs (1180-1270 kg), depending on configuration Gross Vehicle Weight Rating: Refer to VIN plate for specific GVWR 🛡️ Safety Features Ratings NHTSA Front Impact Rating: Not specifically rated by NHTSA for this model year in the same format as modern vehicles. Consult historical safety reports for comparable vehicles of the era. Active Features Active Safety Features: Optional Anti-lock Braking System (ABS) Passive Features Passive Safety Features: Seat belts, crumple zones, reinforced passenger compartment Braking System Front Brakes: Ventilated Disc Rear Brakes: Disc 💡 Technology Features Infotainment Infotainment System: Aftermarket head unit typically replaced original radio/cassette player. Original systems offered analog tuning and basic cassette playback. Driver Assistance Driver Assistance Features: Limited to ABS on select models. No modern driver-assistance technologies (e.g., adaptive cruise control, lane keeping assist). Connectivity Connectivity Features: N/A (No factory connectivity options beyond radio/cassette). 🔧 Maintenance Service Intervals Oil Change Interval: Every 3,750 miles or 3 months (using conventional oil), or 7,500 miles or 6 months (using synthetic oil, check manual for approval) Air Filter Replacement: Every 15,000 miles or 12 months Spark Plug Replacement: Every 30,000 miles Coolant Flush: Every 30,000 miles or 24 months Fluid Specifications Engine Oil Specification: API SG, ACEA A2/B2, SAE 5W-30 or 10W-30 (ambient temperature dependent, check manual) Engine Oil Capacity: 4.5 US Quarts (4.3 Liters) with filter change Coolant Type: Isuzu Long Life Coolant or equivalent (50/50 mix with distilled water) Brake Fluid: DOT 3 Known Issues Known Issues Common: Timing belt failure (if not replaced on schedule), electrical gremlins, worn suspension bushings, premature brake wear,...