dieseling engine..

[Budgetsociety]

Just had my 300D about 2 weeks now and today was the first chance I had to get under the hood and look for vacuum leaks.... lucky for me because it has been cold here and my shut off problem has gotten a little worse. I still havent had to use the kill switch but my dieseling has gotten longer (from about 3 sec to about 30). I dont know how these vacuum lines are suppose to look, but mine is a bit of a maze, with random hoses comming out from the firewall (2 infact) that are not hooked up. I know the cruise control has been disabled, but it seems some othere things have been too. in essense. I ended up plugging the line that goes to the door locks (i think) just before the check valve and that seemed to get my dieseling time back down to 3 sec or so. Where else can i look? and at the risk of seeming too ignorant, icant seem to find the fuel shut off valve, or atleast a vacuum tube that runs to it. greatful for any advise!

btw - I ordered a monovalve repair kit that should be here mon. (praying for constant heat!!)

thanks all!