Found these vacuum hoses damaged. What are they for and would they cause the engine to malfunction? I have an engine which dies after a few minutes then wont start unless you let it sit a while.Still gotta do fuel pressure and compression test when i pick up the gauges. Also have some pics of wire harness/connections. Curious as to what they are for, are they just extras which you can hook up after market components to?

guess i can only upload 5 pics.I had several electrical pics but just one gets the point across.

pic1- vacuum line is broken so the other end of the line is just hanging(not shown) you can see where its suppose to go in pic 2
pic2-line doesnt connect anywhere.
pic3-line is cracked
pic4-not sure what that is, but looked like a connection
pic5-shows one of the hanging electrical connectors on the right side of hood, located between battery and headlight.

 

They are all very important and need to be repaired or better ,,,, replaced with new.

 

So that blue line in your diagram doesn't go anywhere?, just like mine.

does it matter in what order they connect to that "main junction "? What is that junction for anyways, it seems to have an electrical component connected to it aswell if i remember correctly.