Hey, i have seen lots of threads about removing the thermactor/smog system, and none about reconnecting one that was removed.

My system has the hardware still in place, but the vacuum lines have all been disconnected. I am trying to find out which ports of the TAD and TAB solenoid go to the manifold (supply) and which go to diverters and bypasses.

Could someone with a 351W 1988 go and check how the vacuum lines are connected to the TAB and TAD? I can't figure it out. the vacuum diagram says that the TAB is connected to this or that, and the TAD to this or that, but nothing says which is the TAD or TAB, nor which port of the solenoid goes where.

Also, i can't figure out which one is the TAB and which is the TAD. Does anyone know when the TAb opens/closes and when the TAD opens and closes so that I could test it?

Also, what are the default settings for the diverter/bypass valve the is actually actuated by the solenoids? Does it send smog in or out or what?

Thanks.