I have a 1990 accord and I recently did an engine change when I pulled the engine I had no check engine light or sport light flashing. So today I got the new engine in and got it fired up and now I have a flashing sport light and check engine light. Drove the car and everything is shifting gears just like before and the engine runs very good. Chacked everything to see if I left something un pluged but I cant seem to find anything its just a pain because they want there befroe. Im gonna try to pull code tomarrow and get back with more info. Was just lookin for some ideas. Michael

 

You seem to have answered your own question....get the code.