Went to the dealer for the car rough idling and/or cutting off every time I put gas in.
First the service manager tried to blame it on my intake. I told him it was doing it before I put the intake on.
Then he said it was because I "top off" when I fill up with gas. I told him after the first click I just take it up to the nearest 50 cents, so at most I'd be putting in an extra 1/6th gallon. He said that would still do it. I explained that I had been doing that since I got the car over a year ago.
So I left, went to the gas station right down the street, filled up, stopped pumping at the first click, started car, bogged down, drove back, told him no difference. Finally he got a tech to look at the car. Got diagnostic codes that told him "bad gas cap." Who knew? (jerkit)
TL;DR - I got a new gas cap.