car hard to start; slow rising fuel pressure

[banishedmunk]

ok first off i would like to say good morning to all of you.

a little bit of background info the car is a 1991 gsx with a walpro255, aeromotive afpr, denso 660's, bc 272's, e3b16g turbo, xspower fmic,gm maf w/maf-t,and safc2.

Here is my problem yesterday i was leaving the bank and all of a sudden just the slightest throttle input the car would start to sputter like it wasn't getting fuel. Then all of a sudden it dies and wont start back up. I let it sit for a bit then try again it starts but sounds like it is only running on a few cylinders. I know it is getting fuel but not so sure its getting enough because when i tried to start it the fuel pressure rose very slowly and only went up to ~25psi. I have spark. I pulled the wires from the coils and had it turned over all four wires were recieving spark. Any help would be greatly appreciated

 

[GS-T_Newboost]

the thing about fuel pumps is that they work or they dont so if you have low fuel psi then try changing the fuel filter and the sock on bottem of the pump.

 

[theebluecrx]

I just posted on another thread to try to spray some carb cleaner in the throttle body and see if it runs.That way you can easily distinguish if its a fuel problem.

 

[vancitydsm]

If the pressure climbs slowly to 25 max thats a problem.. check for bent pinched lines or fuel filter.. also a week regulator might cause this as well.. pinch off the fuel return line does the pressure increase dramatically if so i would think regulator..