Check engine light came on today

new headlights and taillights; new battery; new tires; oil changes every 3000-5000 miles; replaced air filter as needed; new brakes; new muffler; repair emergency brake; replaced the windshield. I'm the second owner of the car. Bought it with 50000 miles on it, so don't know what maintenance was like prior to my ownership. Coolant level was a bit low as was the oil.

Could be anything from a loose gas cap , - tune-up - to a faulty sensor or wire. Best to have scanned and go from there. IF you choose to just get code(s) read at a parts store , post codes here , BEFORE buying any parts!