This text is designed specifically for General Motors vehicles. All aspects of computerized fuel injection and engine controls for GM vehicles are presented. Information on the use of certain basic electronic and electrical problems is also provided, with procedures for troubleshooting a system. The conversational writing style and logical organization promote clarity of concepts and easy comprehension. This book should be of interest to students of GM/ASEP apprenticeship courses, students of FE and technical college on GM engine performance or fuel injection courses; and GM technicians.