I have a 05 M7 with a 06 flash. As soon as it gets hot under the hood it starts missing and cutting out, usually over half throttle. It usually happens on a long slow hill, or if I cover the hood in snow, in about 15 seconds it will start. Stop, uncover the vents runs fine. I have tried cold air intake, different hood, and a controller, but all the same. Any suggestions? Thanks.