This ASE A8 cheat sheet compresses the ASE Engine Performance certification test into a printable rundown of the facts ASE tests most. It's a premium cheat sheet built by Capital Prep — the one premium prep we trust — and it's yours free. Reinforce it with the rest of your free ASE A8 toolkit: the practice test, study guide, and flashcards.
ASE A8 exam at a glance
- Questions: 60 total (50 scored + 10 unscored research questions)
- Time: 75 minutes
- Result: Pass/Fail, with a per-content-area performance breakdown
- Cost: $34 registration per order + $62 per general test (verify at ase.com)
- Experience: 2 years of relevant hands-on work experience, or 1 year plus a qualifying two-year degree
What’s on the ASE A8 cheat sheet
- General Diagnosis (14 of 50 — 23%) — the drivability diagnostic strategy, read freeze-frame data BEFORE clearing any code, fuel-trim interpretation.
- Ignition System Diagnosis & Repair (10 of 50 — 17%) — primary vs. secondary circuit, coil operation as a step-up transformer, distributorless systems.
- Fuel, Air Induction & Exhaust Systems Diagnosis & Repair (11 of 50 — 18%) — fuel delivery, injector PULSE WIDTH sets fuel quantity, fuel-pressure faults.
- Emissions Control Systems Diagnosis & Repair (9 of 50 — 15%) — the three regulated pollutants and their sources, three-way catalytic converter, OBD-II converter-efficiency test.
- Computerized Engine Controls Diagnosis & Repair (incl. OBD-II) (16 of 50 — 27%) — the ECM/PCM acts on its INPUTS, MAF (air mass, contaminated reads low → lean), MAP, OBD-II code structure.
How to use it in your final week
- Front-load Computerized Engine Controls Diagnosis & Repair (incl. OBD-II) — at 16 of the 50 scored questions it is about 27% of the test on its own, so if you master one section from the sheet, make it this one.
- Then work General Diagnosis (14 of 50) — the sheet leads there with the drivability diagnostic strategy.
- Then work Fuel, Air Induction & Exhaust Systems Diagnosis & Repair (11 of 50) — the sheet leads there with fuel delivery.
- Drill the reversal traps until they are reflex — the most commonly flipped one on this test is A code names a CIRCUIT or SYMPTOM, not a confirmed bad part.
- Read the sheet the morning of your appointment for a last pass on the memory hooks, then answer every one of the 60 questions — 10 are unscored research items and you are not told which.
The cheat sheet is your review layer — your ASE A8 practice test drives the exam-readiness ring at the top of this page. Download it, review, then take a full practice exam (or drill with the study guide and flashcards) to see where you stand.
ASE A8 cheat sheet FAQ
Yes — the ASE A8 cheat sheet downloads as a PDF at no cost and with no sign-up. It sits alongside Career Employer's free ASE A8 practice test, study guide, and flashcards, so your whole Engine Performance prep is free in one place.
It condenses the highest-yield Engine Performance facts into a fast reference, covering all 5 ASE content areas for this test with their exact question counts — from General Diagnosis through Computerized Engine Controls Diagnosis & Repair (incl. OBD-II) — plus the memory hooks and reversal traps ASE tests most.
ASE's official study guide lists A8 as 60 total questions with 50 scored in 75 minutes. The other 10 are unscored research questions ASE uses to build future tests, and you are not told which ones they are — so answer every question.
It is built from ASE's current test specifications and task list for Test A8, including the published per-area question counts. ASE revises task lists periodically, so confirm the live specification at ase.com before test day.
No — the sheet is a cram and review layer, not a full course. ASE also requires two years of relevant hands-on work experience (or one year plus a qualifying two-year degree) for certification, so use the sheet to lock in facts, then work full domain-weighted practice tests to find and fix weak areas.
ASE charges a $34 registration fee per order plus $62 per general test such as A8. A retake is a new test purchase, so verify current pricing on ASE's Dates, Fees & Test Times page before you register.
Computerized Engine Controls Diagnosis & Repair (incl. OBD-II) — it is 16 of the 50 scored questions, about 27% of the test and the largest single area. General Diagnosis is next at 14 questions.
Click the download button or the preview card at the top of this page to open the PDF instantly. Bookmark the page so you can pull it up again the morning of your test appointment.
References
- 1.National Institute for Automotive Service Excellence (ASE). “The Official ASE Study Guide — ASE Automobile Tests (A1–A9).” ase.com, 2026. ↑
- 2.National Institute for Automotive Service Excellence (ASE). “ASE A8 (Engine Performance) Certification Test.” ase.com, 2026. ↑
- 3.National Institute for Automotive Service Excellence (ASE). “Dates, Fees & Test Times.” ase.com, 2026. ↑
- 4.National Institute for Automotive Service Excellence (ASE). “Work Experience Requirements for ASE Certification.” ase.com, 2026. ↑
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