Where is the engine speed input circuit?

Answer 1

The engine speed input circuit is typically located within the engine control unit (ECU) of a vehicle, where it receives signals from the crankshaft or camshaft position sensors. These sensors detect the rotational speed of the engine and send corresponding signals to the ECU for processing. This information is crucial for optimizing fuel injection, ignition timing, and overall engine performance. In some vehicles, the engine speed input may also be routed through the vehicle's wiring harness to various components for diagnostics and performance monitoring.