installed gauges in my truck this weekend and all seemed to go well. However the instructions for the fuel pressure sending unit are not very good. I am not sure I did it quit right. I show 16 P.S.I when the pump runs without the truck running and about 13 at idle. I know the nimbers are within limits but again the instructions for setting up the sending unit were not the best. Does any body have some better instructions or know where I can go to look them up. I just want to make sure I did it right.