Had an issue this weekend while driving through Colorado. I went to accelerate and I could push the pedal to the floor and would get no response, no engine rev or anything. I let up a little and tried again, same thing. I had to completely let off the pedal and then it would work fine. It did this twice and never again all the way home to Vegas.
I was in sport mode both times and no CEL came on. I haven't had a chance to see if any pending codes have been set.
Any thoughts?