Well I've driven without it for a bit and I like it better. It seems that either the computer hasn't fully adjusted back yet or the hang is a fraction of what it used to be. Perhaps I had a dirty IAC and the gunk got knocked loose? I don't even know where to look for this valve to check. I definately have better acceleration through the full spectrum. The gas mileage seems to be down but the with the heat here and all the A/C at full blast it's hard to say. I'm not throwing the cap away, just enjoying the way it's running right now.