During testing with a secondary ignition system oscilloscope, a technician notices that all cylinders exhibit low coil kV output. Which of the following is the most likely cause?
A) faulty coil-to-plug insulation
B) high resistance in the primary control circuit
C) PCM has an open coil driver circuit
D) blown ignition fuse

Question

Quizplus · Accepted Answer

A high resistance in the primary control circuit can result in low coil kV output for all cylinders. Faulty coil-to-plug insulation would normally affect one or a few cylinders, while an open coil driver circuit or blown ignition fuse would result in no spark at all.

During Testing with a Secondary Ignition System Oscilloscope, a Technician