For courses in Engine Performance and Drivability, Computerized Engine Controls, Automotive Computers, and Automotive Fuel Emissions-in automotive departments of vocational and trade schools as well as community colleges.

Based on the premise that simple problems should always be checked first, this practical, hands-on book introduces the diagnosis and troubleshooting of automotive engine control systems. It serves students as a single source for information on digital storage oscilloscopes, fuel injection and ignition system diagnoses, five-gas exhaust analysis, emission testing, and more-with a very technical but easy-to-read and understand presentation. This edition has been updated to include even more detailed scope (DSO) and current ramping tests plus extensive scan tool diagnosis