Part of the popular Today's Technician series, this reader-friendly text provides an in-depth guide to advanced performance topics such as drivability, emissions testing, and engine diagnostics. In addition to a thorough review of on-board diagnostic generation II (OBD II) continuous monitors and non-continuous monitors strategies, the text includes a chapter on emission control and evaporative systems, as well as detailed information on OBD II generic diagnostic trouble codes (DTC) identification and diagnosis and malfunction indicator light strategies. To help you gain essential knowledge while honing practical job skills, the text includes both a Classroom Manual and a hands-on Shop Manual. The Second Edition features new and updated material to help you prepare for professional success by mastering the latest technology and industry trends, including variable valve and camshaft timing designs, variable displacement and variable lift engine designs currently in production, and advanced on-board diagnostic scanners and digital storage oscilloscopes.