Wish my car wasn't up on jacks with a bad crank! Then I could verify which is which...
Ryan, YOU can verify this yourself, which will also verify whether or not your sensor is working...
Grab your 1/2" ratchet, a short extension and the big socket that fits the bolt on the crank pulley (1-1/8"?)
--turn the crank and position the trigger wheel so the sensor sees the metal vane, turn on the key, and take a voltage reading.
--now turn the crank so the sensor sees the "air" between 2 vanes, and take a voltage reading...
You SHOULD have 7-10 volts in ONE position, and 0-2 volts in the OTHER position!
IF SO, your sensor is fine! And post the results of which is which so I won't forgit no more!
IF NOT, then something's up with the sensor!
Your digital voltmeter reading a constant .181 does sound funny, it should vary SOME I would think, unless it's just trying to lock in an "average"...
With an analog meter, the needle will noticibly swing slightly while cranking as it reacts to the voltage changes, this is why it's preferable to a digital meter while testing the sensors)
(EDIT!!) Just thought of something, and this is off the top of my head, so someone else can correct me, but aren't both sensor plugs the same? Meaning (however unlikely) it could be possible the sensor plugs are reversed? (just a thought in the dark!)