On the interstate for 30-50 miles and it will start shuttering violently and acts like it can get gas. I happened once 16 months ago but not again until this week. Now it happens every time. Took it to Nissan. They said no codes, did a 3 hour diagnostic (really good guys), updated everything and said it looks good for its age. It will pull no problem when cool. Drives great but then craps out. Fuel pump is my last hope.