The following items are main part of this course： 1.Diagnose the ignition system of the automobile engine, 2.Diagnose the flue injection system of the automobile engine, 3.Diagnose the structure of the automobile engine. This course concentrates on the promotion of the students’ operation skill of all relative diagnostic equipments and the analyzing ability of diagnostic readings. So, there will be some different with general troubleshooting. Upon completion of this course, the students should be able to: 1.Perform the operation of all diagnostic equipment’s properly, 2.Analyze the diagnostic readings with the underlying theory of engine systems correctly, 3.Read and find the materials from service manual whenever necessary.