Quick back story truck has been sitting in the garage for about two weeks or so due to vacation. Weather has been 30s and below. Truck started and drives fine but when I stopped at a red light fuel pressure started reading 100psi and is staying there. Truck still drives fine at 100psi. Has a ADII (I am planing on getting rid of) and gauge is a Edge CS. I am at work so I havent got to troubleshoot just looking for where I should start or possible causes.