fuel was 15 psi now gauge reads 30

I went out this morning to take a spin in the truck and the fuel pressure gauge went crazy. It pegged itself at 30 psi. So I don't know if the spring in the FASS broke, some wiring issues, or faulty gauge. I could still see the haze from the exhaust, so it was getting fuel - I only let the truck run 20 seconds and parked it. I still have to make sure the pump is running.......check the spring..... but figured I would post this and see if i get any responses

You might try checking the return spring and ball to make sure it is not stuck in any way. Also if you take your return line from the FASS of the filler neck manifold and return it into a bucket or pull the line off and use a new line to return fuel. If anything were to keep fuel from flowing freely out of our return then the pressure would rise. Please call our tech dept if you have any other questions. 636-433-5410 option 1