* Determine engine speed (RPM): The PCM uses this to control fuel injection, ignition timing, and other engine functions.
* Synchronize ignition timing: The CKP sensor tells the PCM exactly when each cylinder should fire its spark plug, ensuring optimal combustion.
* Control fuel injection: The sensor's data helps the PCM determine the right amount of fuel to inject based on engine speed and load.
* Prevent engine starting issues: A faulty CKP sensor is a common cause of "no start" conditions. The PCM needs its signal to know the crankshaft's position before it can initiate the ignition sequence.
In short, the crankshaft position sensor is a vital component for the proper operation of the engine. Without a functioning CKP sensor, the engine will likely not run, or run very poorly.
