1999 Hyundai Sonata car runs extremely rich

My sonata runs extremely rich. Fuel odors are strong especially at a red light. When I changed the oil about 2 weeks ago there was a strong fuel odor in the oil. The oil was very thin as well. The oil had about 2500 miles on it according to the service shop sticker the previous owner had taken it to. I do have another problem as well. Windshield washer fluid doesnt work as well. I'm unable to locate which fuse under the dashboard it is due to the fuse cover missing. I did a google on this situation right after I purchased and another tech site told another 99 sonata owner that had that problem that it was a bad wire. I'm ok with general repairs but electrical system is not my specialty. Thanks!