ummm camshaft position sensor is on top of the valve cover....
http://www.obd-codes.com/p0341
misaligned cams is not part of the "causes" if you read above. What I would do is clear the code and see if it returns first. If it returns right away it's bound to be a faulty sensor (note either the TDC sensor or the CAS) but if it was left for a long period of time and had a hard time starting causing the code, clearing the code is probably all you have to do.
K20As basically never fail if you don't overrev them or boost them recklessly.