2004 Chevy Impala

All of my coil packs are firing except 1&4 what could cause that? I bought new coil packs still same issue, car still runs just vibrates
Also what is this called in photo http://https://share.icloud.com/photos/0umZWHWNg01buuN05QMMEgaDA

Bad connections, or a bad ign control module, most common causes.

Agree with Max, ICM.......