Helpppp!!!

[cummins]

i have an 06 cobalt ss (naturally aspirated). lately the traction control light has been coming on, and when this happens it shifts violently into every gear. on another occasion the check engine light came on as well and i had it scanned and what came up was a bad "camshaft position sensor" now this problem is intermittent, when the lights arent on, the car runs fine. ive talked to several different shops and they have nothing for me. i even called every chevy dealership in the area with no luck. im assuming/hoping its something as simple as a loose connection. anyone had this happen to them or maybe know what this might be? as you can see my name im all about diesel, im at a loss with this little cobalt!