What Does Crankshaft Sensor Do In Your Car

What Does Crankshaft Sensor Do

If you’re like most people, you probably don’t know what a crankshaft sensor is or what it does. You may not even know your car has one. But the crankshaft sensor is a vital part of your vehicle’s engine, and it plays an important role in making sure your car runs smoothly and efficiently.

The crankshaft sensor is a key part of the engine management system. It helps to ensure that the engine is running smoothly and efficiently. If the crankshaft sensor is not working properly, it can cause engine misfires, stalls, and poor fuel economy.

Without a functioning crankshaft sensor, your car will not be able to start. In addition, it can cause engine misfires and decreased fuel efficiency. If you suspect that your crankshaft sensor is failing, it’s important to have it checked out by a qualified mechanic as soon as possible.

If you’ve ever wondered what that crankshaft sensor does, wonder no more! This page will tell you everything you need to know about this essential engine component.

Related Post: What Causes Crankshaft Sensor To Go Bad

What Does Crankshaft Sensor Do

What Does Crankshaft Sensor Do
What Does Crankshaft Sensor Do

The crankshaft position sensor measures the speed of rotation of the crankshaft and the position of the crankshaft at any particular time and converts it to an electronic signal. This electronic signal is then transferred to the ECU to calculate the timing of the ignition and the amount of fuel injection.

The crankshaft sensor of the car is one of the most important sensors of the car; in fact, it is so important that your car won’t even start if the crankshaft position sensor of the car goes wrong.

The reluctor ring (A reluctor ring is a timing ring that sits on the back of the crankshaft and causes voltage in the sensor with rotation) has one or more than one tooth missing to indicate the reference point. When there are no teeth on the reluctor ring, there would be no reference point, and no voltage sent to the ECU.

The crankshaft position sensor is placed so that its tip is close to the teeth of the reluctor ring. As the ring starts to rotate, the crankshaft position sensor starts pulsating the voltage, so that each of the teeth on the ring reciprocates a voltage that is sent forward to the ECU of the car by the crankshaft position sensor.

The crankshaft position sensor then forwards these signals generated as a result of the teeth of the reluctor’s ring passing to the electronic control unit (ECU) of the car.

The ECU of the car uses this data to generate a spark in the engine cylinder at the reference point as indicated in the readings by the crankshaft position sensor.

The ECU of the car also determines the cylinder in which the spark is to be generated by using the readings sent forward by the crankshaft position sensor of the car.

The signal from the crankshaft position sensor to the Electronic Control Unit (ECU) of the car is also used to monitor the conditions of the cylinders and get reported if there is any kind of misfiring in any of the cylinders of the engine of the car.

If no teeth of the reluctor’s ring are detected by the crankshaft position sensor of the car, there would be no signal sent forward by the crankshaft position sensor to the Electronic Control Unit (ECU) of the car.

As a result of no signal received by the ECU of the car, there would be no injection of fuel into the combustion chamber and there would be no spark generated by the engine. Hence, your car will not start.

In conclusion,the crankshaft sensor is a very important part of the car. It helps the car to start by sending a signal to the computer telling it when to start. The sensor also helps the car to run smoothly by keeping track of the engine speed and making sure the spark plugs fire at the right time.

Related Post: How To Start A Car With A Bad Crankshaft Sensor


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