Free ASE A8 Practice Test: Engine Performance
A8 is driveability: fuel trim, scan data, misfires, ignition and fuel delivery testing, EGR, EVAP and catalyst monitors. Computerized engine controls is the largest area.
50 Engine Performance questions in 63 minutes, ASE’s pace, scored by content area with a worked explanation for every answer.
Or start with a free A8 drillTechnician A says an ignition coil can pass a cold resistance test and still fail when hot or under load. Technician B says pulling a plug wire and holding it away from ground while cranking is the safest way to check for spark. Who is right?
ASE A8 test format
- Scored questions
- 50
- Unscored research questions
- 10
- Time
- 75 min
- Recertification test
- 25 Qs · 45 min
The unscored questions are mixed in and not marked, so you can’t tell which ones count. Our full A8 practice test gives you the 50 scored-question count in 63 minutes, the same pace as the real test.
What’s on the A8 test
ASE’s task list splits the A8 into 5 content areas. Your score report shows how you did in each one.
| Content area | Scored questions | Share |
|---|---|---|
| A. General Diagnosis | 12 | 24% |
| B. Ignition System | 8 | 16% |
| C. Fuel, Air Induction and Exhaust | 9 | 18% |
| D. Emissions Control Systems | 8 | 16% |
| E. Computerized Engine Controls | 13 | 26% |
Take the A8 under real time limits
50 Engine Performance questions in 63 minutes, ASE’s pace, scored by content area with a worked explanation for every answer.
Or start with a free A8 drillFree A8 practice drills
Ten questions with the explanation after each answer. Create a free account to save your results; each drill’s first attempt is free.
ASE A8 questions
How many questions are on the ASE A8 test?
A8 has 50 scored questions plus 10 unscored research questions, 60 in total, with 75 minutes.
Do I need A8 for the L1 advanced test?
Yes. ASE requires a passing A8 result before you can register for L1, Advanced Engine Performance Specialist.
Ready for test day?
50 Engine Performance questions in 63 minutes, ASE’s pace, scored by content area with a worked explanation for every answer.
Or start with a free A8 drillOther ASE practice tests
- ASE A1 Engine Repair practice test
- ASE A2 Automatic Transmission/Transaxle practice test
- ASE A3 Manual Drive Train and Axles practice test
- ASE A4 Suspension and Steering practice test
- ASE A5 Brakes practice test
- ASE A6 Electrical/Electronic Systems practice test
- ASE A7 Heating and Air Conditioning practice test
- ASE G1 Auto Maintenance and Light Repair practice test
- All ASE practice tests
Format and content areas are from ASE’s published study guide, checked October 2026: ASE Automobile & Light Truck Study Guide (A1–A9) · ASE A Series test page.
Original independent practice written from ASE’s public task list. Not affiliated with or endorsed by the National Institute for Automotive Service Excellence (ASE) or Prometric.