I found a answer from Boschmann and he's almost always right:
boschmann
02-17-2005, 08:44 PM
It does have a cam sensor, but it's actually called the Hall sensor & is located in the distributor. The car won't run if it's bad, if you keep getting this code it's an intermittent problem. Try cleaning the distributor connection first.
veedubmechanic
02-20-2005, 11:05 PM
94-99 2.0 will set a this code also if the timing belt is old and streches causing the crank to spin at a faster speed than the distributor shaft and the ecm reding it as a bad sensor.