2007 Nissan Frontier won't start

So i have a 2007 Frontier V6 6SPD 4x4 SE, and today i got a flat tire. After changing the tire i went to start my truck and it would only turn over as if it were getting no fuel. I had it towed to the dealership and am having them look at it tomorrow(only reason i went to the dealership is because it still has a factory warranty) the only performance mods to the truck are a volant cai, and a superchip cortex set on mileage save mode.Well to say the least it has been a extreme stressful day and i could really use some technical help from someone more knowledgeable in this situation. Any ideas what could be wrong with my truck?

Also i was wondering do these trucks have a fuel pump relay button anywhere? Or am i looking at a costly repair? Im kinda nervous aboutthe ECM because of the chip. Any suggestion would be greatly appreciated.