Just received my first email tune for the car. I let it run for 15 min and the temp was around 240 to 250. I left radiator cap off and let it bubble out the next time and it still got hot. The next time I loosened the stat bolts and air/steam came out for a while. I finally tightened it back up and shut it off because it was getting warm again. Do you think i have a bad stat? Does the tune have anything to do with it? The fans were both on.