I have a Jdm b16a w/cable tranny in my 91 interga ls
this is my problem when the car has been sitting for a while like more then a few hours the car will only crank the first time I try to start it and not turn over, but the very next time I try it starts, so I thought it was a fuel problem, so I bougth a B&M Fuel pressure guage that mounts on the fuel filter, the next mourning the guage read Zero PSI, Then I tried to start it after which it didnt, as usual I went and looked at the guage and it said 20 PSI, and as usual on the 2nd try the car would start, and at idel it would read 25-30PS I, which i though was a little low. So I realized that I was loosing fuel pressure when it sat, So I bought a B&M Fuel Pressure Regulator we put the in and Im still have that problem we adjusted it and at idel.. Im at 45-50PSI is that correct?, The car really runs better i mean really better but still doesnt hold pressure over night. im going to change my fuel filter and pump next but im running low on cash. But what im asking is am I going about this the right way??, has anybody seen this before?? what should i do?? The car does have the correct ECU
Any help would BE GREAT.
Sorry its so long I didnt want to leave anything out
Thanks everybody

 

yes, your testing is very good. i cant tell you how many people just throw parts on a car just cause someone told them that their aunt tilly in west virgina had a ford that did the same thing and is was the wiperblade that fixed it..
i would try this though.
go out in the morning and look at the guage, turn the key on, but dont crank it over and look at the guage. should read 28-38psi just from turning the key on the first time, nothing else. if its not. then its one or some of these things, Fuel pump,main relay, fuel filter,fuelpressure reg, leaking injetor and or debirs in the fuel supply line. good luck

 

There are crush washers on the filter, and the fuel rail. Over time aluminum crush washers can work loose. The reason your not holding pressure is because something is loose. Not loose enough to cause a fire but loose enough to not hold pressure. When you replace the filter it will have new crush washers there. You can try to tighten the clamps at the fuel pump and return line. Also there is a small hose between the fuel pump and its mount, tighten those too.

This is normal.