The Motor Age test prep study materials for the ASE certification L2 test prep contains tips on preparing for the ASE L2 test which is engineered to measure a technician's knowledge of the skills needed to diagnose sophisticated engine performance problems on computer-controlled diesel engines. Included in this edition of ASE certification L2 Medium/Heavy Vehicle Electronic Diesel Engine study guide are details on General Inspection and Diagnosis; Electronic Engine Controls Diagnosis; Air Induction and Exhaust Systems Diagnosis; Fuel Systems Diagnosis; and L2 Composite Vehicles. In addition to the easy-to-read text, the Motor Age L2 Medium/Heavy Vehicle Electronic Diesel Engine Self-Study Guide contains dozens of useful illustrations. You can also use the ASE L2 test prep study book as a reference guide on the field after you pass the exam.