I think I need a Rewire

[BGGSTin]

Well I'm thinking I need to rewire my Walbro 255. Heres the issue: Once warm the car starts perfectly fine for around <5 sec or less until the idle settles down to 900rpm which is what I have DSMlink set to. Once it gets to 900 however it then wants to die, the fuel pump makes crazy noises [very high pitched, little rattling].
If I hit the gas while its almost stalled it will come back, go to idle, then die. My mods are in my profile but I can't find any info on people doing a fuel pump rewire becuase they were experienceing these problems, becuase most people do it first off.

 

[1LE]

I would suspect that the fuel pump may be bad. If I can power a Supra pump off of stock wiring, there's no reason you shouldn't be able to power a 255 (much more efficient/lower power draw pump)! BUT, if you're going to rewire anyways, might as well do it first to make sure that's not the problem.

 

[BGGSTin]

Well I was up at our "spot" last night and I got a few more tips. I'm going to check the fuel pump relay and see if its bad. Because my Fuel Pressure Gauge under the hood reads over 100psi when it stalls, yet reads 43 when you start it!? So I definitely have a problem, and I definitely think it's electrical because any electrical device I turn on affects the sound and how fast it stalls. Any more advice would be useful and I'll try to post up something that Hopefully resolved this by the end of the day