My 1993 oldsmobile achieva when I slow down sputtthe car cuts off

I have the exact same car. And after a lot of searching, found the EXACT cause for this. Its your TCC switch (torque converter clutch switch). It has somethign to do with your transmission, and kicking the car into overdrive at certain speeds for fuel economy. Anyway, mine would stall out after driving for more than 15- 20 minutes, especially at highway speeds, which when you think about it - is the speed if you had a manual/stick - you would be shifting into the highest gear. Well, this chip or whatever it is basically gets "stuck" in high gear. And when you come to a stop, its like trying to get going in 4th gear on a manual from a dead stop. NOT happening!  I checked with a few people and did some searchign online - and found out all you have to do is unplug the wire leading into your transmission  (not a car guy so I'm not sure exactlyif that's what its plugged to, but on mine ,same model and year as yours, it was blue on the very front on the engine way down dead center almost if you're standing in the front of the car looking down). I believe it was a 4pin connector when you unplug it, but I'd have to go doublecheck. NOthing at all bad happens from donig this - all it does is you lose about 3-5 mpg when you drive. I still get 25-27 mpg. If your car isn't in awesome codition and you dont want the headache of some mechanic taking everything apart to get inside the transmission to replace a dumb chip that just kicks your car into overdrive, I'd go this route. Worked for me.  I have checked all over online - and everyone who had this problem and unplugged it, had no problems ever. NO side effects. One guy says he's run up 100,000 miles since then and still runs like a top! If you need more info or whatever - email me. I dont mind. I'd love to know I'm helping someone out so they dont have to deal with it as long as I did!  [email protected]

It could be as simple as bad ground, or a bad voltage regulator. If your Fuel pump is not getting enough Voltage when your rpm drop's you may not have enough Fuel pressure. Change your fuel filter too just to make sure that's not dirty and be causing your problem.