Well I am new to accords. I bought a 4dr Civic EX new in 1998. Had it till a few months ago that i totaled it trying to miss a dang dog. But My life till then was jsut Civics and that is all I know right now. Someone help me. I dont know jack about this car. It is automatic, and my D4 light keeps flashing. What is it and what cna fix it? What type of engine does it have? Can I beef it up and get a power/tourqe increase I want or should I do an engine swap? What mods should I lean towards and which ones should I stay away from? Any help would be appreciated.