Help from Hyundaitech for my 97 Elantra
 

My poor ol 97 Elantra's(240,000 miles) check engine light has come on. It's
still running, but not well. Replaced the wires and plugs and it still has a
slight miss and low power. Anyway I had it scanned at Autozone and it gave a
code that the Cam Position Sensor was showing high resistance. In your
experience does these sensors get weak(they're magnetized) or go bad. I
would suppose if it was shot the car wouldn't run at all, but I'm just
guessing there. I understand it could be anywhere in the system associated
with this sensor up to and including the ECM.

Thanks,
Rick