 Show Crankshaft and Camshaft Position Sensors, Engine Speed SensorsBasic DescriptionCrank or camshaft position sensors and engine speed sensors are similar devices that operate based on pulse detection and counting. The fundamental components of these sensors include a toothed disc mounted on the shaft, a stationary detector and electronic circuitry (Fig-1). The disc has teeth or marks distributed evenly around the circumference. When the shaft spins, teeth or marks pass by the stationary detector and generate a series of electrical pulses. The frequency of these pulses is detected and converted to the corresponding shaft rotation speed. The relative angular position can be obtained by counting the number of pulses. Additional reference markers are required to sense the absolute position of the crank or camshaft. The Crank position sensor is usually mounted in the crankcase over the toothed wheel on the crankshaft. The Camshaft position sensor is usually mounted in line with the toothed wheel on the end of the camshaft. It is usually hidden under the timing chain cover on the front of the engine. Some sensors have two sets of discs with a constant phase shift in order to determine the direction of the rotary motion. Generally, there are four types of crankshaft or camshaft position sensors: magnetic pick-up coils, Hall-effect sensors, magneto-resistive element (MRE) sensors, and optical sensors. The first three utilize the metal teeth of a wheel to generate a series of electric pulses, based on changes in the magnetic field, as the teeth come into the proximity of the sensor. Optical position sensors use a light-emitting diode (LED) light source and a photodiode to detect optical marks on the shaft or slots in a disk as they move past the detector. Optical sensors have a good degree of accuracy and are suitable for both high-speed and low-speed applications, but the optical components and disc must be kept clean to ensure an accurate reading. 1 Minute Read In this powerful article, you are going to learn the location of the camshaft position sensor only in one minute. The camshaft position sensor of the vehicle is one of the most important vehicle sensors. It detects the camshaft rotation and sends the data to the car ECU. The vehicle could not run properly if the car camshaft position sensor is faulty, so in this case, it is better to replace the camshaft position sensor of the vehicle. You must know the location of the camshaft position sensor of the vehicle before going for the replacement of the camshaft position sensor yourself. The location of the car camshaft position sensor is not fixed and can be found in different places based on the type, make, and model of the vehicle. The camshaft position sensor can be found along the axis of the camshaft in the engine. It is usually located at the front, back, or side of the engine, where the sensor faces the teeth of the camshaft rotor (gear). It is most likely to be found on top of the engine cylinder’s head near the timing cover and could be placed on the top of either one or both camshafts (intake and exhaust camshaft). The camshaft position sensor could be placed near the tappet cover of the engine. It is located on the exterior side of the engine such camshaft position sensors are easier to replace because of their ease of access. The sensors may be visible under the hood or could be buried under engine components. A repair manual can help you find sensors’ location. Can you replace a camshaft sensor yourself?You can replace your camshaft sensor yourself if you are comfortable working on your engine, or you can hire a mechanic.
How do I know my cam sensor is bad?A glowing check engine light, stalling, poor acceleration and bad fuel mileage are all possible signs your camshaft position sensor may be failing. Gone are the days of carburetors and distributors, replaced by a variety of sensors that help a car's computer get the maximum performance out of the engine.
What happens when a camshaft sensor goes out?Car Will Not Start: Over time, as the camshaft position sensor fails, the signal it sends to the engine control module weakens. When the engine no longer receives the signal, you will not be able to start your car. Engine Misfires: A failing camshaft position sensor can cause your engine to misfire.
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Where is my camshaft position sensor located
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