Challenge Your Exam Readiness With Our Free L1 Practice Questions

Question # 22

A turbocharged engine experiences detonation under boost. Fuel pressure is within specifications at idle but drops significantly at high load. What is the most probable cause?

Options:

A.

Restricted fuel return line

B.

Faulty fuel pressure regulator

C.

Weak fuel pump

D.

Clogged air filter

Viewing question 22 out of 72 questions
Industry research shows that students who utilize L1 practice tests are significantly more likely to pass exam.


Our free L1 practice questions act as a diagnostic tool to give you a clear snapshot of your Automotive Service Excellence Level 1 readiness. Discover which topics are your strengths and, more importantly, which critical topics require your immediate attention.

Go to L1 Exam Main Page

L1 Overview

Name Automotive Service Excellence Level 1
Code L1
Vendor Skilled Trades
Certification ASE

L1 Questions