Charcoal Canister and vapor line issue

[AutaviaFJ40]

The PO put a plug on the second outlet on top of my Charcoal Canister. The Canister only has 3 ports total- two on top and one on bottom unlike the diagram in my 81 Emissions Repair Manual attached below..

The fuel vapor line running along the side of the truck terminates with a rubber extension hose which should connect to the Canister...but it was left disconnected and venting to the environment.

If I try to connect the rubber hose at the end of the fuel vapor line to the Charcoal Canister the engine dies. Left disconnected and the canister nipple plugged, all runs fine.

Any suggestions? Should I leave it as is, or does this indicate another issue?

 

[AutaviaFJ40]

And just to add, I have the canister with two ports on top and one on bottom as discussed here:

Hooking up Charcoal canister and fuel seperater

The PO removed all the smog equipment including the charcoal cannister and fuel separater. Carb was swapped out for a weber. The fule tank is capped with rubber caps that disentagrate every year. I am tired of the gas in the cab and the expansion and contraction of the gas tank. I have...

forum.ih8mud.com

And I have a Weber carb...so based on this post:

Hooking up Charcoal canister and fuel seperater

Can anyone reply with a photo of the Fuel Separator hooked up so it's clear to see where each of the 3 hoses attaches? Or... should i hook the hoses up how they are aligned in this picture? Where as from left to right on the fuel separator, hose 1 connects to the farthest driver side (LHD)...

forum.ih8mud.com

it sounds like this works, but I don't like that im venting fuel to the environment. Is it even safe?

 

[Dizzy]

Which year oh Cruiser? Which Weber?

 

[AutaviaFJ40]

Which year oh Cruiser? Which Weber?

1981 FJ40
Weber 32/36

 

[Dizzy]

It is the general consensus that the 32/36 won't deliver enough air at idle to the 2F. I have the same problem on my Nissan Z24, which is a 2.4L 4 cylinder, at 6,900' altitude. I fixed that by drilling a 1mm hole in the primary throttle plate opposite the progression holes. I wonder if your vacuum switching valve is delivering enough air from the open hose so that it can idle?

My suggestion is to deal with the idle problem independently of the fuel vapor, or, re-smog with an original carb hoping that all the smog equipment can be put back into service.

I take it that you have a PCV hose connected, and a line to the VSV, and a line to the brake booster; do you have anything else plumbed into the intake manifold? Are you running a line from the Weber to the distributor?