If the RPM signal is lost on an electronic fuel-injected vehicle, which of the following conditions will exist?
A) The ignition timing will be set to zero.
B) The PCM will go into backup mode base settings.
C) The engine will not run.
D) The vehicle will hesitate.

Question

Quizplus · Accepted Answer

The RPM signal is crucial for the engine's operation, as it informs the PCM (Powertrain Control Module) about the engine speed. Without this signal, the PCM cannot properly manage fuel injection and ignition timing, causing the engine to not run.

If the RPM Signal Is Lost on an Electronic Fuel-Injected