1989 Ford Escort

I purchased this car after it had been sitting for 4 or so years at 68,000 miles and replaced a fuel pump, fuel filter, did an oil change, flushed the coolant, replaced the idle air control, the tires have about 2,000 miles and I've replaced some hoses and fuses as well. I used this car as a daily driver for about 4 months and drove on the free a few times and it was doing fine but recently it's been dying as soon as you take your foot off the gas. Needs a new windshield and trunk latch as well has aftermarket speakers with a Kenwood stereo and has an automatic 3 speed. I'm not a mechanic and don't know what the problem is and I'm just trying to get something new. Nice little vintage project car or I've heard they make fun rally cars I'm asking for 1,500 obo preferable no trades unless you got decent daily.