Hey man! I had the same problem with my 93 LX. I´d stop at a light and i had to keep it around 1000 rpms to keep it running and it started out of no where. It was a vacume leak in the pvc hose at the elbow. The ford place said that was a common thing with the escort. I replaced the hose and it ran better then it had in a year or so. I hope this helps you out some and good luck.