Some logs would be a great start to seeing if anything odd is happening. Those IATs are pretty normal and shouldn't cause any kind of issues. When you begin a log (pressing OK while viewing a live monitor), all of the other default log monitors in the log list will automatically be recorded until you hit stop (by pressing OK again). Email us a log of before you have issues and after you have the power drop off and we can take a look for any odd variances.
Ian
ian@cobbtuning.com