loosing power 96 TAURUS

Can Anyone Please Tell Me The Real Answer To Why A 96 Ford Taurus Would Loose Power Completely ,when Stepping On The Gas .you Shut It Off Let It Sit For 10 Mins Or So And Itll Start Right Back Up And Run Fine.ive Replaced At Least 8 Sensors , A New Computer , Etc,etc, Also The Air Bag Light Flashes , The Check Engine Light Flashes , And It Just Will Not Run.spits ,sputters , Blows Black Smoke Out From Under The Hood.ive Probably Spent Close To 1,000 And Still Have The Problem.any Help Will Be Greatly Appreciated!!!!!!1

Have you tried hooking up a scanner to get codes? This will save you headaches in the future, as well as $$$.