I am having this problem right now. I just replaced my wires cause they
were arcing. . Now i am looking into my distributor cap. I notice on my 89
civic that this happens when the car is warmed up, not initially.
On a side note, what is the difference between the td-02u and the td-18u
distributor. I have a 91 si motor installed in my 89 civic. The 91 motor
came with the TD-18U and now i have the TD-02U. . .??