Can these sensors get wrong by the car being in garage two years_

Question

My Pathfinder has been inoperative two years, now I tried to start it and have two codes about both camshaft sensors.
I changed both sensor two years ago, couple of month before I parked the car.
These sensors get wrong with using the car?

Answer 1

No, it should not, the auto part store stock there parts more than two years,P0340 and P0345 there is no signal produced by the camshaft sensor , check the connection

Comments

I tested and it reads 12.33 volts, 0.04 volts at center & 0.05 volts at the other side pin.
12.33 volts is not to high ?
0.4 volts at center is right ? Its should be negative, don't you ?
I check the connections and all looks right
I pull out the sensors and put it back and still the same