Delve into the intricate world of automotive diagnostics with OBD-I & OBD-II by Greg Banish, a comprehensive guide that unravels the complexities of onboard diagnostics systems. This book serves as an essential resource for enthusiasts and professionals alike, exploring both the historical context and technical evolution of the OBD systems that have transformed vehicle maintenance and repair. The Story With a clear and methodical approach, Banish, a former diagnostics and performance calibration engineer, takes readers inside modern original equipment manufacturer (OEM) diagnostics systems; OBD-II became mandatory for all cars made in the United States in 1996. The author explains in plain English the electronic control unit (ECU) logic behind why the check engine light comes on, and offers strategies for where to start looking when problems are detected. Through practical examples from his own experience, readers gain a solid understanding of diagnostics and troubleshooting, along with sound advice on modifying a vehicle while keeping its emissions and diagnostics systems fully functional. Why Readers Love It Engaging writing style that makes complex topics accessible to all. Plain-English explanations of ECU logic that enhance comprehension. Real-world examples from the author's experience that provide practical insights. Perfect For This book is ideal for automotive students, professionals seeking to update their knowledge, and DIY enthusiasts eager to enhance their understanding of vehicle diagnostics. Whether you're a seasoned mechanic or just starting, OBD-I & OBD-II equips you with the tools necessary to navigate the evolving landscape of automotive technology. Also explore Greg Banish's other works, which continue to demystify automotive technology and empower readers to tackle the challenges of modern vehicle maintenance.