CAMSHAFT POSITION (CMP) SENSOR CONSTRUCTION/OPERATION [WL-C, WE-C]


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•  The CMP sensor is installed on the cylinder head on the front side of engine.
•  The CMP sensor consists of a Hall element with a magnetic sensor, and a processing circuit that performs signal amplification and identification.
•  CMP sensor is a hall-element type and it detects hall voltage generated by the change in magnetic flux of the magnet inside the sensor and hall element as the camshaft angle signal.
•  One pulse are detected per one rotation of the camshaft by the projections on the intake camshaft pulley.
•  If the CMP sensor is removed/installed or replaced, magnetized objects such as metal shavings adhering to the sensor could cause fluctuation in the magnetic flux of the magneto resistance element, causing abnormal sensor output which could adversely affect engine control.
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