Hey guys, need some help.. My 09 Cobalt LT Sedan with 85k miles and automatic tranny, backed out of a driveway, kinda steep incline and had to give it a little more gas to get er up onto the road, bout a mile after I'm driving it idled kinda rough then Check Engine light came on. Advance auto hooked it up and it read it was the Camshaft pos. Sensor. Car seems to run OK now, light still on. Does this mean jumped timing? Is this serious? Or just a damn sensor gone bad.