ok, bit of a story. had 3 idiot lights come on. My roommate's pretty sure it's a speed sensor, and fine to drive. (She was ASE certified until it expired she went on to Environmental engineering). Then we realized Windshield wipers weren't working. then a few days later the check engine light came on.
Turns out part of it seems to be...rodents. Pulled out a nest last week, found some wires chewed through. Roommate spliced them back together. check engine light seems to have been a sensor that we replaced as well. it's at shop now to double check things and do the inspection, so we'll see.