explanation of the ASE test procedures, including how to register for and take the tests. Student technicians can use Auto Engine Performance and Driveability to get a head start on understanding the latest automotive systems. Parts of this text review basic troubleshooting techniques, automotive electronics, engine computer systems, ignition systems, electronic fuel injec- tion, emission control systems, and nonengine-related per- formance problems. The text also reviews material covered in courses on engines, electrical/electronics, and drive train systems. The material in this book will help prepare you to take the ASE Engine Performance test (A8). Working technicians can refer to this text for informa- tion on the latest automotive designs, test equipment, and computer-specific troubleshooting techniques. Technicians who are familiar with only one make or type of vehicle can also use the information presented here to determine how all systems, components, and service procedures are simi- lar, and how they are different. Auto Engine Performance and Driveability can also be used for review before entering a state-sponsored auto emis- sions Inspection and Maintenance (I/M and IM 240) train- ing class in areas where this testing is performed. Others who will find Auto Engine Performance and Driveability useful as a source of review material include experienced ASE-certified Engine Performance technicians preparing to take the ASE Advanced Engine Performance (L1) test. A workbook is also available for Auto Engine Performance and Driveability. It contains chapters that cor- respond with the chapters in this text, as well as hands-on jobs. Chris Johanson 4 Auto Engine Performance and Driveability