It was happening to her when I started driving her all the time after I bought her. so I did some research am realized that the code had to do with the EGR. So the one that was originally in her I replaced it with the same digital one an I also replaced my o2 sensor the one before the catalytic!! When I start her up she drives in the morning with little surge but when warm surges are obnoxious!! Help please I want to drive her like before cruising with respectful love for third gen camaros