The Haynes Repair Manual (Automotive Emission Controls Manual) - 10210 provides step-by-step instructions for diagnosing and repairing emissions-related problems on most cars and light trucks from 1981 to the present. It covers the basics of emissions systems, including components, operation, diagnosis, and troubleshooting. It also includes detailed information on the various components, including descriptions, specifications, and diagrams. It is written in a user-friendly format, making it easy to understand and use.