My 2011 eguc, with stage one and vance and hines power ovals and 33,000 miles, just started idling rough when cold,and will die if I don't hit the throttle to keep it going. It takes a few minutes to warm up and then idles pretty good, but I am getting the occasional spit and sputter on take off and some decel popping between shifts. I also noticed the red key light on the speedo is coming on too. Any ideas about what may be causing this and any way I can fix it, or does it sound like a problem the ext. warranty would cover?