Given the sensor i was not told anything about it but yet had to figure out how it worked and if it worked. What i came up with is that it was a position sensor due to its magnetic field. Using a Multimeter and test leads I found something interesting.
It carried .839 Ohms normally. As i stuck a piece of metal to it it jumped for a split second and returned to .839. When i notice a change in the reading was when i pulled the metal from the sensor it jumped to 1.4 ohms. Interesting...
After doing more research online I did find out that position sensors will actually create an alternating current sine wave in the form of a square.... this is what speaks to the ECU which then controls ignition timing, etc.
Below are some pictures of the sensor and my testing.
What would happen if you put that in front of something rotating? Like in the drill press...
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