Can someone please tell me if that little black rectangle on the end of the ground wire coming off of the coil pack wiring harness is critical or not? I broke it...can I just rig the ground wire to the coil pack w/o it? Thanks....

 

IIRC, that's a capacitor. 2.2uF I think, and yes it's there for a reason.

 

It's there to reduce RF interference IIRC, you might hear a whining sound from your speakers that changes with engine RPM. I broke mine but I just soldered on one from a random distributor I had lying around.

 

Ok, thanks people. Is it safe to drive w/o it for a while until I can replace it? This RF signal won't damage anything, it may just cause an annoying whine in my speakers? Thanks.

 

I tried wiring it to the coil pack w/o the gizmo on the end and it kept blowing my #29 ECU fuse, so I stopped doing that...running w/o it for now, seems to run fine...