Carby - It Takes in Fumes from the Float chamber and Fuel Tank and then releases them into the engine at Medium to high speeds to cut down Hydocarbon emmisions.
EFI - It Takes in fumes from the Fuel tank and releases them into the engine at Medium to high speeds to cut down Hydrocarbon Emmisions.
There is a couple of valves in the Charcoal cannister that allows fumes to travel only in one direction, Tank to Charcoal cannister and Cannister to Air inlet.
The inlet connection is on the Air cleaner side of the inlet not the Vacuum side.
If it becomes blocked you may get :
1/. Excessive pressure in Fuel Tank
2/. Fuel dripping from bottom of Cannister
3/. Strong smell of fuel from cannister
Toyoda
It use to be a carby charcol canister (4ac AE86) and know its a efi charcol canister (4ag AE86), are the efi and carby the same or are there many differences.
Im not having trouble with it, im just planning for the future.