The crankshaft sensor is a critical component of engine management in modern vehicles. It measures the position and speed of the crankshaft and transmits this information to the engine control unit. This allows the control unit to calculate the optimal timing for fuel injection and ignition. The sensor thus ensures efficient engine operation, low fuel consumption, and low emissions. If the crankshaft sensor fails, the engine may run erratically or even fail to start. Typical sensor types are Hall sensors and inductive sensors.