Peugeot 306 XR 1.8i problem

I have a Peugeot 306 XR 1.8i 1994 model. I have replace the ignition coil on it as it was not working fine and use a coil that comes from a

1.6 Peugeot 306 car. The problem that i am facing now is that my car burns very rich and also it misfire at time, poor idle speed or stalling and also hesitation during acceleration. so i would like to know if anybody can help me.