1994 Mustang 3.8L starts fine after about two minutes will loose power and die at idle only after it has warmed up its fine seems like starving for fuel.... fuel filter changed, fuel pump changed mass air flow changed, idle is very rough also

This sounds like it's being starved of fuel. Does it struggle to start? Did you fit the pump yourself? Recheck all the connections to and from the fuel pump. There could be a loose pipe that is letting air into the system. Speeding up is just running the pump faster.

Use a bottle of yellow HEET dry gas to remove any moisture problem in the fuel.

Clean / replace air filter.

Top off ATF to MAX level.

Use starting fluid to aid starting.

Check the idle air control on the throttle body it controls the rpms until it is warmed up. You can use a meter to check it.

It can be issue with fuel pressure,its low or the problem relates to faulty spark plugs.
There are few troubleshooting steps to confirm the problem.I suggest you few help links,with complete troubleshooting and solution for these types of issues.

1991 Toyota Trecel: Engine Starts fine but dies when gets Warm? http://whatisbyme.blogspot.in/2012/05/1991-toyota-trecel-engine-starts-fine.html

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1994 Toyota Pickup: Starts fine but dies in few seconds?

http://howtobyme.blogspot.in/2012/05/1994-toyota-pickup-starts-fine-but-dies.html

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1994 Lexus ES300: Engine Idles Rough and Dies? http://whatisbyme.blogspot.in/2012/05/1994-lexus-es300-engine-idles-rough-and.html

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Stalls And Dies At Stop Sign? http://www.howtobyme.blogspot.com/2012/07/stalls-and-dies-at-stop-sign.html

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Car dies when gas pedal is pressed? http://schematicsdiagram.blogspot.com/2011/12/car-dies-when-gas-pedal-is-pressed.html

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These help links will help you to troubleshoot and solve the issue.
Thanks.

Engine stalls or RPM fluctuates at idle up and down or dies near idle.

This problem is commonly caused by a dirty automatic idle speed control valve and throttle valve but always run a OBD2 fault code as well as the cleaning procedure. Buy a can of throttle valve cleaner (do not use carburetor spray cleaner!) from NAPA or Carquest (made by CRC chemicals) and spray it into the air intake while the engine is running, use up about 1/2 the can, engine will try to stall hold the speed up, shut it down and let it soak for 30 minutes, restart and blow out the remaining fluid, shut it down and disconnect the negative battery cable for 5 Min's to reset the base idle control

As far as the stalling is the tps sensor okay, check it to make sure its in spec, as far as the air bag light you will need to scan the codes and see what code is being stored in the system, its a 94 so you will need to count the flashes of the light and thats the code,also check the map sensor thats a common problem also with these, good day,

Hi,
The idle air control (IAC) that is located on the side of the throttle body may be stuck closed. This controls idle speed and cold start idle speed. It can be cleaned if it is removed and disassembled.
Hope this helps

could be the mass air flow sensor

yes it does if it is reading lets say lower than normal that would explain easy start up and stalling later.the coolant temp sensor has two wires .so if your car warms up and your coolant is about 200 degrees your coolant sensor might say 80 degrees .access to a scanner to check temp would be great.

replace fuel filter first.