Thanks for feedback. I called Brian Fellini (a plug for Brian) this morning and he contacted Frank. I got in this afternoon and they found that the tank vent valve needs to be replaced. Frank said no problem in driving, and after a wash and vacuum, I got it back with the engine light now off. So they did something to eliminate the vacuum leak. I have a date in July scheduled for a loaner when the vent valve is replaced and to touch up a tiny scratch on the fender.
Happy camper

and I should be able to make it for the excursion on Sunday, when I hope to meet and greet.