Crankshaft sensors are being discussed. Technician A says the signal from a Hall-effect CKP cannot be used to synchronize fuel injector timing with the engine. Technician B says some early distributor ignition systems relied on photoelectric sensors to monitor crankshaft position. Who is correct?
A)A only
B)B only
C)both A and B
D)neither A nor B

Question

Quizplus · Accepted Answer

Technician B is correct because some early distributor ignition systems did use photoelectric sensors to monitor crankshaft position. Technician A is incorrect because Hall-effect CKP sensors can be used to synchronize fuel injector timing with the engine.

Crankshaft Sensors Are Being Discussed