Latest development, please help!

[LA_phantom_240]

My s14 has been having an odd series of problems lately, and now I think I'm at the breaking point between driveable and not driveable.

Symptoms:
-Hard starting. Takes a few seconds, sometimes 10-15 seconds, to start.
-Once it starts, it kills. If I give it throttle, and let off very lightly, it will stay running, but idle at like 400 rpm.
-If I put just a tiny bit of pressure on the fuel line going from the filter to the inlet on the rail, she kills.
-If I drive it, when I first take off, it seems normal. Less power than it should have, but it works. When I push on the pedal to accelerate, it bogs out and dies until I let my foot off, and in a couple seconds it resumes running. When idling in neutral, I can give it a tiny bit of gas and she revs. I dunno how high exactly cause my tach wasn't working right, as usual. If I give it a decent amount of pedal, she pops and sputters and slowly revs. This is followed by killing as it comes down.
-Pulled ECU code, and was only getting a code 105 (EGR).
-Started it up and let it idle for a while and played with the throttle, and now I'm geting code 25 (IACV).
-A coulpe weeks ago, it was only having a problem with an intermittent miss on the highway and under mid to heavy acceleration.

I really don't think the IACV has jack shit to do with anything. I'm thinking my fuel pump is el toasty, given if I play with the fuel hose I get death. The return hose doesn't feel like it has any pressure on it either.

I need this thing running FAST. Help please?