Modern engines are controlled by sophisticated Engine Control Units (ECUs) that manage fuel injection, ignition timing, turbo boost, emissions, and dozens of sensors in real time. Understanding these systems is essential for anyone interested in automotive diagnostics, performance, and ECU tuning.ECU Calibration & Tuning Fundamentalsprovides a practical introduction to modern engine management, explaining how ECUs interpret sensor data, optimize engine performance, and protect components under varying operating conditions. Through real-world examples and diagnostic case studies, you'll learn fuel injection, air-fuel ratios, ignition control, turbocharging, engine protection strategies, OBD diagnostics, fuel trims, data logging, and common tuning misconceptions.Ideal for car enthusiasts, automotive technicians, mechanics, engineering students, and performance tuners, this book bridges theory and practice while providing a solid foundation for advanced ECU calibration and engine tuning.**Part of the Future of Automotive Engineering Series**, covering advanced engine electronics, diagnostics, turbocharging, transmissions, hybrid vehicles, fuel injection, and performance tuning.