The quantity or volume of fuel delivered to the cylinders by the fuel injectors is determined by:
A) the fuel pressure regulator
B) the length of time that the PCM supplies a ground signal to the injectors
C) the fuel pressure temperature sensor
D) the length of time that the PCM supplies a power signal to the MAF sensor

Question

Quizplus · Accepted Answer

The quantity or volume of fuel delivered to the cylinders by the fuel injectors is primarily determined by the length of time that the Powertrain Control Module (PCM) supplies a ground signal to the injectors, which is often referred to as the injector pulse width. This controls how long the injector stays open and thus how much fuel is sprayed into the cylinder.

The Quantity or Volume of Fuel Delivered to the Cylinders