So I found a AC Delco pump brand new on Amazon for $121.00 !!!!

It just showed up today and I also decided to try out a DORMAN PMD module. I will let you know how it works out!

 

be sure the FSD/PMD is mounted on a heatsink with heat transfer medium between them and a PMD resistor is installed.

 

Yes I have the PMD on a heat sink,. It is mounted between the holes in the front bumper.

I put that DORMAN one in the other day. seemed to run good drove it home from my shop. Only a few miles.

Next morning I went out started the truck let her warm up and then started to my shop. In a few mile ride she stalled 3 times! I dont think this cheap PMD was worth my time...

Today a had some time so i went ahead and installed the "feed the beast" kit on my truck. While i was in there I also installed 3 gauges on the pillar (fuel pressure, boost, Exhaust temp)
While is was doing the 3/8 fuel line I made a T so that I could screw in the sender for the fuel pressure gauge. The T is between the fuel filter and the IP.

Once I got her all back together and running I noticed that I have only 5psi at idle. I revved her up and held it at about 1700 RPM and the fuel pressure dropped to about 0-1PSI. The fuel pump is a ACDELCO pump and its only about 2 months old with less than 100 miles on it, as my truck has been sitting. What do you think??

 

About normal fuel pressure-t Delco LP to get for replacement is from a 93 model that has higher pressure.
AC Delco #EP158
GM #25115224

Make sure that you don't have air in the fuel before you condemn the PMD.

Also did you use heat transfer paste/pad between the PMD and heatsink,did you install a PMD resistor in the new PMD?

 

So dropping to little to no fuel pressure at 1700RPM is correct? I am thinking about buying a new pump from leroy diesel....

I am about 90% sure there is no air in the system but i will get a clear hose and check it out. This is unlikely as it was stalling before i even thought about installing "the Feed the beast"

Yes i installed that small rubber pad that came with the new PMD and yes I have a #9 resistor in the module, I have always ran one

 

0 psi fuel pressure at wide open throttle is correct with a stock LP.

Loosing fuel pressure too quickly would make me think about the tank sock getting plugged,a plugged vent in the filler cap or air getting the lines.

 

Wow WTF huh? I guess I should really upgrade the stupid LP! I am going to order the pump from Leroy diesel today!

I am unsure of the sock... I have a brand new AC Delco sending unit. I am going to try to get it in this weekend. I just need some time to pull the bed off. Actually I think ill oder the remote filter assembly from leroy too that way I can just do away with that stupid sock!!

So can I use any clear fuel line? its 1/4" line correct??

 

The fuel line must be diesel rated-some lines don't play well with diesel.

Take an old piece with you for sizing.

 

Ok so I went to napa and got a piece of Tygon line and installed the between the injector pump and the steel fuel rail that runs left to right on the front of the motor.

As far as I can see I do not have any air in the system!

 

No bubbles in that line when the engine is idling?

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Is the IP/PMD harness ground fastened to an OS screw on top of the IP-It must be there.

Also I noticed you got new injectors-were they ever tested for pop pressure or were they marked for turbo use or naturally aspirated?

Lastly have you tried running with the fuel cap loose?
A plugged fuel cap vent can cause running out of fuel type issues when the truck runs for extended periods-or a gasser cap does the same thing.