Question # 67

A vehicle misfires under load. Scope shows normal primary ignition but erratic secondary voltage on one coil. Swapping coils moves the misfire to another cylinder. What is the root cause?

Options:

A.

Faulty ignition coil

B.

Weak crankshaft position sensor

C.

Dirty injector

D.

Vacuum leak

Viewing question 67 out of 72 questions
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