i am having one of those b.s. problems that will take forever to find. my car starts fine but as soon as i press the gas the car dies immediately. have a fuel pressure gas and its not anything related to fuel. thinking its tps or ignition problem. possibly igniter. when tps is bad the car still revs right? just very rough right? because my car doesn't even rev.

 

fuel pressure gauge not pressure gas. sorry

 

Check your fuel pump relay and the circuit relay and possible the fuel filter. I had the exact same problems you are describing and replace all of the above. One of them fixed the problem. (the fuel pump relay works on 2 voltages, one for idle and one for higher pressure needs)
Allen

 

sounds exactly like an unplugged map sensor.

 

if you find its that plug it in and make sure you reset the computer.

 

Have you checked for any ECU codes?

-b