ASE® L2 Exam Prep

Download the top-rated ASE L2 app and study anywhere, anytime.

Study Online Start for free today

ASE Electronic Diesel Engine Diagnosis Specialist Certification Test (L2) Guide

The Automotive Service Excellence (ASE®) Electronic Diesel Engine Diagnosis Specialist (L2) Test contains 45 questions focused on the diagnosis of general diesel engine, electronic diesel engine controls, diesel engine air induction and exhaust systems, diesel fuel systems, and specific fuel systems, including electronic unit injector (EUI), pump-line-nozzle electronic (PLN-E) and hydraulic electronic unit injector (HEUI) systems.

A. General Inspection and Diagnosis (9%)
B. Electronic Engine Controls Diagnosis (60%)
C. Air Induction and Exhaust Systems Diagnosis (13%)
D. Fuel Systems Diagnosis (18%)

App At A Glance

  • 200 Practice Questions
  • 4 Content Subjects
  • 300 Happy Users

Create Custom Exams

In three simple screens, you can choose your study mode, content areas, and how many questions you want to take. Personalized practice will increase your learning ability.

Detailed Explanations

Our answer rationales are written to effectively teach you the material. We even explain why the distractors are incorrect choices so you can fully master the concepts.

Track Your Progress

Track your progress with detailed exam results and cumulative history charts. Analyze your past scores, the time taken to complete a test, and knowledge area strengths and weaknesses.

Study on any Device

Study on any device and store exam history in your Pocket Prep cloud account. Simply log in to your account and pick up where you left off!

Download the app and start studying for free today.

Study Online Start for free today
No Internet Required

Study anywhere, anytime. Open the app on your mobile device to get started.

Study Modes

See answers and explanations as you go or simulate an official exam by waiting until the end.

Study Reminders

Schedule daily study time that fits your busy schedule and never forget to study.

Question of the Day

Finding motivation to study can be tough. Challenge yourself with a new QOTD each day.

In-App Support

Reach us through the app and enjoy personalized support. Let us help you succeed!

Always Affordable

Pass your next exam without breaking the bank. Start studying for free today!

*Disclaimer: Pocket Prep, Inc. is not affiliated with or endorsed by the ASE®. Accordingly, the ASE makes no representations regarding the content of Pocket Prep, Inc. materials. All organizational and test names are trademarks of their respective owners.