Having some problems

The car will not idle at when its cold, just started. Once the car is warm it will be fine. Has anyone had this problem at all? By not idling I mean it will sputter a few times then die. this completely goes away when it is warm. Thanks for the advice

Have you recently disconnected your battery?

Hyde will do what you are saying since I installed the 550s ... whenever the battery is disconnected or the ECU is reset. It is becuase it takes a good 25-40 minutes of driving for the ECU to relearn the 550s.