Car stalls after pressing the gas pedal

What is your question?

I replaced all the sensors, fuel pump is new, fuel injectors are new, fuel pressure regulator is new, maf sensor is new, idle air control valve is new, air intake temperature sensor is new, TPS is new, knock sensors are new, cam and crank position sensors are new, coolant temperature sensor is new, pcv valve is new, purge valve is new, maf sensor is new, ignition coil pack is new, I even tried to replace the ECU, it still stalls out when I hit the gas pedal. When it's cold, it starts right up, it idles fine. Even after 30 mins idling it don't stall out. But as soon as I press on the gas pedal, it stalls right out. Mobile mechanic I know says it sounds like it's getting too much air and when he checked on his scanner, the maf sensor showed it was still connected when he already disconnected it. What can this problem be from? Please help!

What makes this problem better or worse?

When I step on the gas it stalls right out

How long has your 2004 Hyundai Tiburon had this problem?

About a year