 Let's talk to Mark. You're on the end of the hood show, Mark. What can we do for you? Hi, I've got a 2008 Nissan Ultima that I tried everything under the sun, but for some reason when I push the gas after it's warmed up a little bit, it just doesn't go. It feels like it's not getting any gas, and then when I put it into neutral and back into drive, it takes off like it's been shot out of a cannon.