Question

Technician A says a misfire on one cylinder could be caused by a defective coil on a vehicle with a waste spark system. Technician B says if there is high resistance in the primary circuit the secondary circuit kV output will be reduced. Who is correct?

1) A Only
2) Only
3) Both A and B
4) Neither A or B

Answer 1

Technician A is correct about the misfire, while Technician B is correct about the impact of high resistance on kV output.

Step-by-step explanation:

Technician A is correct. In a waste spark ignition system, each coil fires two spark plugs simultaneously, one on the compression stroke and one on the exhaust stroke.

If a coil is defective, it can cause a misfire in one of the cylinders. Technician B is also correct.

High resistance in the primary circuit can reduce the kV output in the secondary circuit, leading to weaker or no sparks.