I was idling in the my car yesterday while sending an email. It was for 5-10 min and my A/C was running. All of the sudden my CEL came on and then my temp gauge started climbing. Surprised, I drove off and once my rpm's went up for a few second the temp gauge went back to normal. About one mile down the road at a stop light, smoke started coming from my scoop. I pulled into the gas station and the smoke was coming from my turbo or maybe underneath. That freaked me out! However, P0483 is a Cooling Fan Rationality Check Malfunction. Can someone please tell me what this might mean.