How does the crankshaft position sensor interact with other auto parts?

The position sensor of a part such as a crankshaft can rightly be called the main element in a car that functions on a par with the engine. The main task of the sensor of this type is the control of fuel injection, synchronization of fuel resources and the entire ignition system. That is why, if there is any failure in the work of such a detail, then the machine simply can not be "activated", and the motor is not included in the work. Also, as you move, the position sensor regulates the distribution of fuel, informs the driver of the engine speed, continuing to synchronize the operation of the engine itself. Such sensors are of different types, they all work on different principles, which, first of all, depend on the model and technical features of the machine.

The most common is an inductive (or magnetic) crankshaft position sensor . Functioned due to the fact that around him formed a magnetic field (why the name of the mechanism), which interacts with the synchronization tooth. This type of sensor is also used by many drivers as a speed sensor with which the car is moving. It is easy to use, very sturdy and not subject to external factors. The second type of sensor is the Hall effect, whose work is also based on the interaction of the teeth with the magnetic field. This sensor is often used as an indicator of the ignition distributor. A more advanced and relatively new type of sensor is optical, based on the conversion of the light flux into a voltage pulse.

The position sensor, whatever it is, is mounted to the board circuit using a long wire. It, as a rule, has the same complete set as any other car sensor. Therefore, there should not be any problems with its mounting. It should, however, be noted that when attaching the crankshaft sensor, it is necessary to leave a clearance of 1 to 1.5 millimeters between it and the toothed pulley, otherwise this mechanism will not be able to form the required magnetic field, hence the position sensor will not work.

The crankshaft position sensor can be damaged if the repair was performed by an amateur (and by mistake the car parts were damaged). Also, the cause of breakage can be the ingress of foreign objects into the gap between the teeth and the sensor itself, which will lead to a stop of its operation. You can correct the situation only by replacing this device with a new one. That is why it is desirable to always have a spare version of the sensor, which can be installed at any time.

In order to determine in advance whether the position sensor in the machine is OK, simply connect an ohmmeter to it and measure the resistance. If its performance will range from 800 to 900 Ohms, then the mechanism is normal. Otherwise, such a sensor simply can not function, and any driver immediately sees an alarm. As a rule, the error of the sensor operation is displayed in the form of a code with the number 35 or 19 in the control buffer of the system.