[Cashburn]

It doesn't matter on which post you put the wires it is just a hall effect sensor. Easy way to test the wiring is to turn the car to the on position and connect the wires and have someone watch the speedo, it should start going up. If you then connect the wires and still get no signal or no pulse than its a bad sensor. Sensor is easy to remove and fluid will not be lost if you have the car level or nosed forward, make sure the o-ring gets put back on the sensor if you remove it.....hope this helps.