Code PO341

I have an 05 4wd 6speed manual with k&n filter charger and an edge economy mod with about 110k. My check engine light came on yesterday while pulling a small aluminum boat down the highway. I would lose power and here a rattling noise at about 70 mph. I went and had auto zone do a diagnostic test to tell me what it was. PO341-Camshaft Position Sensor A-Bank 1 is what is said. I made sure all sensor connections were tight and checked for bare wires. found nothing. Truck sat over night, now the light is off. Should I have this looked at/should I be worried, or is it something easy that I could check. Any help would be much appreciated. Thank you all in advance.