ASE's L2 Electronic Diesel Engine Diagnosis Specialist Certification test consists of 45 questions surrounding the analysis and diagnostics of general diesel engine system controls consisting of electronic, air induction and exhaust systems, fuel systems, specific fuel systems including EUI, PLN-E and HEUI.
Certification expires after 5 years and unlike most other ASE tests, the re-certification test is the same length as the original certification test.
