In closed loop, the PCM adjusts the pulse width according to inputs from a variety of sensors, but primarily the _____. A)TP (throttle position) B)ECT (engine coolant temperature) C)IAT (intake air temperature) D)O₂S (oxygen sensor)

Question

Quizplus · Accepted Answer

In closed loop operation, the Powertrain Control Module (PCM) primarily adjusts the fuel injector pulse width based on feedback from the oxygen sensor(s) to maintain the optimal air-fuel ratio. This ensures efficient combustion and minimizes emissions.

In Closed Loop, the PCM Adjusts the Pulse Width According