jdm009

I have a 1990 ford mustang 2.3 lx and I am having a major problem! Last night I was driving and all the sudden It felt like I lose lots of power! I brought my car into my friends shop to look at. First thing we did was check if it had spark and it did so we changed the spark plugs and it dixnt change anuything and if you let off the gas the car will die neecx help! Thanks