Hey DG, thanks for helping me along with this project. Sorry to hear it’s sleeting in Dallas. If it’s any consolation, it’s supposed to be below zero here in Hudson Wisconsin tonight. The best thing I ever did was put a little heater in my garage. It allows me to keep my cars running during the winter.

I see your point about the vacuum relief port, but I think mines different. From what I could gather from this site the thermo vac valve on my 1989 activates/deactivates a vacuum line that is powered by the upper and lower ports on the throttle body. This line, is connected via the purge valve to the charcoal canister (which I can’t seem to find) in order to vent fuel tank gases to the throttle body for combustion. With that said, it stands to reason that the purge valve would have to be physically connected to the canister to capture the gas. Based on your input, I’m going to look again at the left front corner of the car, and I’m going to crawl around under the driver’s side and see if I can spot this thing. The good news is that the car runs GREAT. For years I’ve been suffering with a bad idle and poor mileage and the engine swap has left me in great shape.

Again, I REALLY appreciate your help, and hope I can repay the favor some day.