Technician A says a random misfire or a multiple cylinder misfire will be recorded as a P0300 code. Technician B says that a MIL that is flashing is an indication of an intermittent emission system failure that is not currently occurring. Who is correct?
A) A only
B) B only
C) both A and B
D) neither A nor B

Question

Quizplus · Accepted Answer

Technician A is correct because a P0300 code specifically indicates a random or multiple cylinder misfire. Technician B is incorrect because a flashing MIL (Malfunction Indicator Light) indicates a severe misfire that is currently happening, which can cause damage to the catalytic converter, not an intermittent emission system failure that is not currently occurring.

Technician a Says a Random Misfire or a Multiple Cylinder