Question # 68

A turbocharged vehicle detonates under boost. Fuel pressure is steady, but trims show lean under load. What is the most probable fault?

Options:

A.

Faulty MAF sensor underreporting airflow

B.

Sticking EGR valve

C.

Weak ignition coil

D.

Exhaust restriction

Viewing question 68 out of 72 questions
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