Based on the premise that simple problems should always be checked first, this practical, hands-on book/CD-ROM/ worktext package introduces the diagnosis and troubleshooting of automotive engine control systems. It serves users 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. Specific chapter topics cover the diagnostic process; diagnostic trouble code retrieval; technical service bulletins and scan tool data; digital multimeters and digital storage oscilloscopes; advanced starting and charging systems diagnosis; ignition system diagnosis; engine fuels and driveability diagnosis; advanced computer sensor diagnosis; computerized carburetor diagnosis; advanced electronic fuel-injection diagnosis; emission control device diagnosis; five-gas exhaust analysis; engine condition diagnosis; and symptom-based diagnosis.