Crankshaft Sensor

Pulse generator is used in various vehicles systems. A pulse generator or induction generator uses the electromagnetic induction. In 1831, famous experimental physicist Michael Faraday began his great series of experiments in which he discovered electromagnetic induction. This principle is also used, for example, in the car system to measure the speed or the position of the crankshaft. This principle also helps to determine the position of the throttle and steering angle.

The pulse generator is installed in close proximity to moving parts such as toothed-wheel. When the wheel is moving, the voltage is generated. This voltage changes when a gap rotates through the magnetic field. By characteristic gaps, the exact position can be determined. A pulse generator consists of a coil and an iron core or a permanent magnet. Due to wear or a material defect may result in harm. The affected system often falls out completely. But sometimes there is not a defect, but only a setting error. For example, if the inductive is too far away from the gear, extends the generated voltage is not sufficient.

The replacement of pulse generator is not difficult, because this component is inserted very simple. However, the diagnostic process is not easy. With an ohmmeter can be tested if one pulse generator works properly. A Hall effect sensor, which can also be used as a crankshaft sensor, can be damaged by an ohmmeter. If you want to order a toothed belt, central locking, a wiper arm, a dipstick, an oil pump, a gear, an ignition cable or other car part, you can find it in our parts catalog or use “search” function.

HOW TO DETECT MALFUNCTION OF THE CRANKSHAFT POSITION SENSOR

This component should be diagnosed if there are symptoms of the contactless ignition system malfunction.

The most thorough inspection of the device can be made with the use of an oscilloscope. This requires corresponding conditions. You can also use a voltmeter by connecting it to the contacts of the sensor. A properly functioning Crankshaft position sensor will have the voltage of 0.4 V to 11 V. Another method is connecting a reference device.

The service life of the component depends on the operating condition. Manufacturers indicate that the sensor is able to respond 107–108 times. This number is quite enough for the entire service life of the vehicle, if no mechanical damage or extraneous electromagnetic radiation occurs.