My car is a 2006 Grand Prix Gt i had just recently installed a k&n cold air intake on it and ran fine for 2 days, I was driving it one night and shut the car off and when i went to go start it back up it started and it was missing really badly down on power and every time i would stop it would just die on me. Now this isn't the first time i had this intake on and it did the same thing to me ran fine for 2 days and just decided to start stalling and running like total crap. I know i did nothing wrong as far as installing this system i double checked all connections and clamps and also disconnected the battery to reset the computer. It seems to be running rich because it started to smoke real bad with the rough idle. At this point i have now idea what else to check or why this could be happening and tips on what else to check would be appreciated.