I drive a 2009 Aveo5 LT. The car only has 33k miles on it. Oil has been changed properly since I've owned it. Only had it for a little over 6 months. Over the past few days my engine light has been coming on for a couple days, then going back off for a couple days, then back on and so forth. Well, it came back on today so I took it to Auto-zone to get the code ran for free. It came up with two codes, p0597 and p0598. If I remember correctly they meant something to do with thermostat controller, or bad wiring. We (me and the employee) noticed that when we pulled the codes on the computer, it said it was for a Volkswagen. Anybody else ever had this sort of problem? The car itself runs fine for the most part. It does has a little hiccup every now and then while idling at a red light.