Pages: 96 black and white Art: 90 illustrations, photos, and charts Binding: Spiral bound Overview: Written by Sam Bell, shop owner and Motor magazine contributor. Chapter topics include (1) Combustion; (2) Emission Control Devices; (3) Emission Tests; (4) Analyzing Test Results; (5) Troubleshooting and Tips. Book discusses traditional gas analysis, including lambda evaluation, plus OBD II DTCs commonly associated with common vehicle problems. Includes combustion overview, the nature of emissions, how emission controls operate to reduce specific gases, and how to determine whether an emissions problem is caused by an air/fuel imbalance. Special NOx troubleshooting section, glossary, and index.