Technician A says that the most efficient method to diagnose a fuel economy complaint is to begin by making pinpoint tests of the fuel delivery system, including fuel pressure and volume and the...

Technician A says that the most efficient method to diagnose a fuel economy complaint is to begin by making pinpoint tests of the fuel delivery system, including fuel pressure and volume and the operation of the fuel pressure regulator. Technician B says that diagnosis of a fuel economy complaint should begin with taking the necessary steps to narrow down the area of the problem before beginning pinpoint test procedures. Who is correct?

A. Technician A only

B. Technician B only

C. Both technicians

D. Neither technician