Hey guys, new around here. Liking it so far. Hoping to get some help with a question. In the process of fixing a couple of other issues, I found this part...which Chilton has labeled "EVAP Vacuum switch" from what I can discern ( I am probably wrong ). It is on the passenger side of the engine. Thought it was the canister purge solenoid at first but it doesn't match up with any pictures I can find. The line coming out of the front goes back across the engine and over to the fuel vapor canister. #1...what is this thing? #2...there is a vacuum line that comes off the left side that leads to well...nothing. Right now its just an adapter with no line at all connected to it. Can someone tell me where this is supposed to connect to if in fact its supposed to connect to something? Thanks!