|Hyundai 39180-26900 Crankshaft Position Sensor|
The crankshaft position sensor measures the rotation speed (RPMs) and the precise position of the engine crankshaft. Without a crankshaft position sensor the engine wouldn't start. he crankshaft position sensor is abbreviated to CKP.
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DescriptionAuto Crankshaft position sensor
Product typeCrankshaft position sensor
Car makeFor Hyundai
Fit forFit for Hyundai
QualityThe same as OEM
SizeThe same as OEM
PackingPVC packing, Bubble packing, Carton packing
Delivery timeNormally is 3-7 days after payment cleared
Product featureProduced by environmental plastic material, non-toxic, anti-burning
Customer serviceWe provide professional ODM services and Procurement services
Crankshaft position sensor how it works锛?/strong
The crankshaft position sensor is positioned so that teeth on the reluctor ring attached to the crankshaft pass close to the sensor tip. The reluctor ring has one or more teeth missing to provide the engine computer (PCM) with the reference point to the crankshaft position.
As the crankshaft rotates, the sensor produces a pulsed voltage signal, where each pulse corresponds to the tooth on the reluctor ring. The photo below shows the actual signal from the crankshaft position sensor with the engine idling. In this vehicle, the reluctor ring is made with two missing teeth, as you can notice on the graph.
The PCM uses the signal from the crankshaft position sensor to determine at what time to produce the spark and in which cylinder. The signal from the crankshaft position is also used to monitor if any of the cylinders misfires. .If the signal from the sensor is missing, there will be no spark and fuel injectors won't operate.
The two most common types are the magnetic sensors with a pick-up coil that produce A/C voltage and the Hall-effect sensors that produce a digital square wave signal as in the photo above. Modern cars use the Hall-effect sensors. A pick-up coil type sensor has a two-pin connector. The Hall-effect sensor has a three-pin connector (reference voltage, ground and signal).
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