Ok, so i installed my fuel pressure gauge today and im not happy to say the least. I bled the lines of air and the truck runs and starts. However the fuel pressure gauge is acting erratic. When first started it will go up to about 14psi then go down to about 3.5 psi and stay there. At wot, it RISES to about 16 or 17. I have no idea why my gauge is acting backwards like this.