Well I have had my FASS on the truck for a short time and now the question.
It is a 95HPFP. When I first put it on I was getting a good solid 18-18.5.
Now it is pretty much 17.5 solid. Is this normal, or could it be a change in
weather? Or could I need to bleed the fuel pressure guage line? I did not
do this when I installed it. It is a Dripocal Manual guage with isolator.
Just curious as to why the drop in pressure, even though it is only a pound.
I guess I'm just a little ****.

 

Could be a filter getting dirtier. Somedays I'll have 17 at idle, others I'll have 20. I wouldn't worry unless you see it at 10 or less.

 

Mine started at around 25 psi, and after a couple of months it has settled at a soild 19 at idle, 18 cruising and never below 16.