L2 study guide book published 01 2020 by motor age training newly updated in january 2020 the l2 ase study guide contains the latest composite vehicle type 4 which is part of the l2 certification examthis ase study guide provides detailed and valuable information about medium heavy vehicle electronic diesel engines including a complete current task list. L2 study guide book published 01 2020 by motor age training newly updated in january 2020 the l2 ase study guide contains the latest composite vehicle type 4 which is part of the l2 certification examthis ase study guide provides detailed and valuable information about medium heavy vehicle electronic diesel engines including a complete current task list. Try our free ase l2 practice exam for the electronic diesel engine diagnosis specialist which covers the following components general inspection and diagnosis electronic engine controls diagnosis air exhaust systems diagnosis and fuel systems diagnosis. Title ase test prep l2 mediumheavy vehicle electronic diesel engine diagnostic specialist study book motor age training author mediactsnetorg markus schweizer 2021 01 11 01 38 32. Title ase test prep l2 mediumheavy vehicle electronic diesel engine diagnostic specialist study book motor age training author wikictsnetorg jennifer werfel 2021 02 08 04 12 20