some input needed on start then die issue on a 95 tahoe

[ERIC95TAHOE]

i have a 95 tahoe 350 tbi.
my issue is that i will start it and it will die sometimes, not all the time, other times it starts fine, lately it will start and idle lower than normal and slightly rough. this problem has become more frequent lately. a few times in the past it would idle down lower and roughly when coming to a stop while driving.
im leaning more towards it having a vacuum leak, i think that because while coasting at certain speeds that it will come close to or at ilde, the idle will hunt, it will rev and go back down just a couple hundred rpms pretty much all the time the speed and rpm is right during coasting
things that are new:
distributor, cap, rotor, plugs wires, coil, ignition control module, egr, injectors, fuel filter, air filter, pcv valve, idle air control valve and coolant temp sensor. i might be forgetting somethings.
i checked to fuel pressure about 6 months ago and it was within spec, i have not checked it since it has been doing the problem more frequently.
well, any thoughts or inputs, once i get some time im going to hunt for a vacuum leak.

 

[Gzes]

Fuel pump? When my tbi fuel pump was going out it woukd start then die then start and run

 

[SunlitComet]

look at the fuel pump. if at idle AND parked you do not get hunting then you most likely don't have vacuum leaks

 

[ERIC95TAHOE]

ok im going to test the fuel pressure this weekend once i get my adapter to check it, also i have noticed fr a while now when i start it it has a strange oder from the tail pipe, only right when it is started, i cant really discribe the smell though.

 

[Gzes]

Its probably running rich. My tbi has been running rich and yea it smells weird. But do the fuel pump if it is before it dies because its almost on its last leg

 

[ERIC95TAHOE]

i was thinking it was kind of a rich smell, but im not sure what would be causing it to run rich.
i just filled up full of fuel lol so im runing it out to make it a bit easyer

 

[retorq]

if you hook a gauge up and it's too high (bad FPR) that could cause it to run too rich for the computer to compensate for.

 

[Donnie Yukonie]

if you hook a gauge up and it's too high (bad FPR) that could cause it to run too rich for the computer to compensate for.

x2 IMO these fuel pumps either work or dont , i dont see it being "intermitten"

 

[ERIC95TAHOE]

x2 IMO these fuel pumps either work or dont , i dont see it being "intermitten"

i haven't got a chance to hook up the gauge because my part for my gauge hasn't came yet... but it is a intermittent problem and it hasn't happened since i posted this thread. so i too think the pump is ok. but then again i don't know anything until i hook up and see whats going on. everything on the throttle body is just about new but the fuel pressure regulator