Yeah, I'm resurrecting an old thread.
Same thing happened to me last night - and I had the TSB performed for the sulfer smell (over 3 months ago!) - so I'm kind of lost on what this could be.
I have to bring the Silver Bullet in for the annual state inspection this week, so I think I'll get the codes read at that time and find out what's going on.
Has the loose gas cap cause been confirmed or is it an urban legend???