One problem related to check engine light on has been reported for the 2002 Lincoln LS. The most recently reported issues are listed below. Please also check out the statistics and reliability analysis of the 2002 Lincoln LS based on all problems reported for the 2002 LS.
My 2002 Lincoln Ls's engine light came on at the end on may, I had autozone do a free test on it and it read that it was misfiring on cylinders 3 and 4. I took it on and had a tune up and replaced 2 of the 8 coils (which was about $500 total). A month later it started doing the same thing, it shutters when I reach the speed of 40 mph and it idles like a semi. I have yet to take it in, I rarely drive it because of it. I got an estimate for another $500, just for the other 6 coils.