So i have an 07 SS, i was getting sick of the Low Coolant dash warning coming on, so i decided to throw some coolant in. It was kinda low, so i filled it to the cold line. Drove about 45 minutes to the bus station, all highway, ran fine. Came off the highway, and came to a stop at a red light, and the CEL comes on. Parked it, went to work, came back and started it, light was still on. Drove it to Autozone where the put the diagnostic reader on, apparently it was a po302, cylinder 2 misfire. So i started it up and started pulling out of autozone back on the main road, when the CEL turns off..... It has ~38000 miles, and i have no stage kit. Any ideas?

 

possible internal problem with cylinder 2 coil