I would love to help you but I just don't really know much about 3kgt's and no offense but I really don't care to learn about them. I know that normal dsm's have problems with the ecu all the time, it's very common. One of the problems you'll probably run into on this board is I think there is only you and maybe 2 other people on here that own a 3kgt/stealth of some sort. If you want to have your ecu checked out let me know and I can refer someone to you who does awesome work. Otherwise thats the only help I can really offer.