Ok here are my dwell meter readings. My Dwell meter is of the variety that has a + and - lead and then the dwell lead. I have attached the positive lead to the jump post and the negative lead to block. The dwell lead is connected to the orange wire that would normally be plugged into the diagnostic plug. This lead is melted and can not be plugged into the diagnostic plug. Fixed: 61% WOT engaged: 66% Then after about five minutes the meter goes from 61% slowly to 42% and then pops back to 61% and repeats over and over until it starts to settle at: 55%-44% so 50.5% average Fully warmed up: 58% - 46% so 52% average I can not get the meter to fluctuate around 45%. Further enrichment causes the FV to stop buzzing and the dwell meter reading ceases to fluctuate. Now; I can hear this hissing sound on the driver's side of the engine. Listening through a piece of PVC pipe the sound seems to come from the hose that runs between the cold start valve and the idle regulator. I removed the hose and it is fine but the sound persists! I originally though that the leak was coming from the tube that runs into the mixture control unit. Any ideas? I am assuming this is a vacuum leak but perhaps it's something else. Thoughts, comments, corrections, criticisms greatly appreciated. Nathan 2277 To address comments privately to the moderating team, please address: moderators@xxxxxxxxxxx For more info on the list, tech articles, cars for sale see www.dmcnews.com To search the archives or view files, log in at http://groups.yahoo.com/group/dmcnews Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/dmcnews/ <*> To unsubscribe from this group, send an email to: dmcnews-unsubscribe@xxxxxxxxxxxxxxx <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/