Technician a Says That in a Fuel Injection System, the MAF

Multiple Choice

Technician A says that in a fuel injection system, the MAF sensors may be vane-type, heated grid-type, or hot wire-type. Technician B says that the PCM supplies a richer air-fuel ratio when it gets a signal that current flow is increasing to maintain temperature in the MAF module. Who is correct?

A) A only
B) B only
C) both A and B
D) neither A nor B