Why does my 1993 oldsmobile bravada bogg down an die when i press the gas down

My 1993 oldsmobile bravada boggs down an dies when i push the gas pedal down it only does it after it warms up but when the egine is cold i can push the gas pedal down as far as i want an as fast as i want it it dont bogg down an die but like i said when the motor is warmed up i can only push the gas pedal down so far an i have to do it slow or it will start to bogg down an lose power i dont understand why when its cold it runs fine but when its warmed up it acts like it dont wanna run i was told to unplug a wire from the tranny but no one showed me where the wire is or what wire to unplug to see if that would help but that may not work but if you have had the same problem an done this an it worked can u please explain where the wire is an what wire it is so i can try it