The Crankshaft Position Sensor or CPS determines which cylinder is firing to establish injector synchronization and proper engine operation. Your engines Crankshaft Position Sensor sets the fuel injection timing, supply's the engines RPM signal, and determines engine speed. The crankshaft position sensor is used in all modern engines with fuel injection systems as a triggering device for proper engine operation. Thus a malfunctioning Crankshaft Position Sensor can illuminate the check engine light or cause a no-start condition.
The replacement of your faulty crank sensor will allow your vehicle to operate as it designed with the proper fuel injection timing and maximum performance.