Cam sensor
One should be ground (make sure it has low resistance to a chassis ground), one should be 5V with the ignition on, the other is the signal wire. Check it for continuity between the sensor connector and the ECM pin.
Also, what Fiero said. Where these wires run and given the heat involved, the plastic protectors they put on end up brittle and hard. I could see a shorted out/melted wire being the cause.





