I have a 1989 Toyota corolla. This morning it was spitting an sputtering, if I kept it in first gear around 25 mph it would run ok, but if I tried to shift or give it more gas it would try to die. Finally it just quit running. I did a test on the fuel pump and it is still getting fuel. I pulled a plug wire off, stuck a screw driver in there an propped it on a metal bracket, cranked it over and no spark. I'm guessing it is a coil issue but I wanted a second opinion. Any ideas?