baulum

Hi,i've a b16a2 engine and causing my ignition coil to damage oftenly.Three months back,i undergone the same problem,i replaced it and it worked fine.Its been a week that the problem arised.But the matter deteriotes day by day,the engine is running but sometimes it misfires or reacts strangely.And i'm curious why again?Do you think there are some false connections while they made the engine wiring?