Check engine light on 1999 Saab 9-3

Changed the coil pack on te car and ceck engine light will not go off. Went and had them check the codes and the codes were all good. When I drive past 55 the check engne light blinks. I do not know what to do Please help me with this problem.

Asked by for the 1999 Saab 9-3
the blinking ck eng light means the issue could damage exh system. this tells me you may still have a misfire causing the light to blink.return and have it ck'd again
Thank You will have that done on Satuday.