lemann

This is what happened: A few years ago I was trying to take my battery cables off to clean them and found that they were rusted on. So I took my 1999 Crown Vic to the local ford dealer and they had one of their mechanics take them off and clean them. Ever since I have had several lites come on in the dash and one of those is the check engine lite, which stays on all the time. Another red lite comes on and off occasionally. But the car seems to run well and Ive put on maybe 50,000 miles at least with that check engine lite still on. I attributed it to the time of the cable cleaning. Since it runs well Ive just left it. Has that happened to anyone else? As if right now I had almost 223,000 miles on it.