In the July 2019 issue of the Georgia Fiero Newsletter, the fuel system is the feature of an article. While talking with the writer of the article and Editor of the newsletter, I learned that the vapor canister is actually purged by the EGR solenoid. Through all the years, this is something I never realized. For anyone that hasn't converted to the DIS system, take a look at the routing of the vacuum lines coming off the EGR solenoid, leading to the vapor canister.
Now with this revelation, a question comes to mind. When converting to the DIS system, the electro/pneumatic EGR solenoid is eliminated. What happens to those vacuum lines going to the vapor canister? How is the canister now purged?
I'll give this a little while here before asking the question on PFF.