First off I'd like to say hello. Sorry for making this my first post. Ok, I am in desperate need of help and I did some searching for the past couple days on and off of here. I did a lower intake manifold gasket myself and thought I was just about done and ready to fire this thing back up for the first time in about 4 or 5 months. Well I got this extra wire which I will include a pic of and I thought ok whatever it can't be that bad. Now I should just throw it out there that on initial startup the distributor wasn't tightened all the way down and it did start fine and idled kind of high. I didn't notice the distributor til after I looked close and it was bouncing around and hitting the upper intake housing. I thought I would just tighten it down and my problems would go away. I was wrong. When i tightened it down it stopped rattling for sure, but now my truck is stumbling over itself like crazy and will not idle at all. It will just die as soon as you release the gas. I also would like to add that the distributor, cap, pin, wires, plugs, and maf are all brand spanking new just because I have read all the problems these can cause. The plugs are indeed double ac's. I read that these year trucks timing cannot be set. So is there a wrong way to install the distributor? I am open to all suggestions. I also wanna know if this wire may be causing my problems and if so where does it go and if not what else could it be, and if possible does someone have the link to high def engine bay pics of a factory suburban. I just want to know for wire routing reference. Sorry for all the questions. I have however found alot of my other answers from previous posters here and you guys are extremely helpful.