*89 TPI, stock ECM removed

So now I know I can manually control the purge solenoid on the EEC can, but I'd like not to have to do that. I've read where it's a real bad idea to run the line straight from the tank to the TB due to a backfire situation. What if I ran the line thru the canister without the purge solenoid. That would keep vapors going thru the canister and prevent the smell and, I assume, the backfire hazard. I've looked through the openings as best I can to make sure the incoming line does not connect directly to the purge outlet, which it does not. Note I can only see an inch or so down the purge outlet; I have run "feelers" down the tube looking for the junction point and it seems it's almost down into the charcoal.

If there is something I have missed, point it out. I can't see why this might be a bad idea. All opinions (other than put the stock ECM back) are welcome.

 

I've been thinking of how to do this without an ECM as well. I'm thinking that I'll adapt components from a '77 Vette- canister and thermo vacuum switch. The TVS will act in place of the solenoid. I'm not sure I understand your plan. Can you elaborate?