MEFI Fuel Injection
Magnetic Vane Switch Assembly
The vane switch (CMP) is an encapsulated package consisting of a pick-up on one side and a permanent magnet on the other side. When the window of the vane cup is between the magnet and the pick-up, a magnetic field is completed between the pick-up and the magnet. As a vane passes through the opening the field is shunted back to the magnet, during this time voltage is produced as the vane passes through the opening. When the vane clears the opening, the window edge causes the signal to go to 0 volts. This signal is used by the ECM for camshaft position.
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