| Author | Topic |
|---|
Location:
Brisbane
Registered:
February 2003
|
|
Re: Charcol canister's
|
Fri, 12 March 2004 14:27
 
|
 |
| Quote: |
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.
|
yes, i think there are
carbi canisters usually rely on external valves to supply vacuum to evacuate fumes (at the appropriate time), there's usually three ports on the top and a drain/fresh-air-intake at bottom of unit..
efi units tend to have two ports on the top of the canister, using only one vacuum line to the manifold, the other line to tank and a drain/fresh-air-intake at bottom of unit.
efi units are better for cars that have had all the emisions and control poumbing removed (that would usually control how the unit vents into the manifold. The eif units just purge into the manifold at high vacuum.
i've got some scans of my manual showing the PCV and charcoal canister setups on 18R (carb) versus 22RE (EFI) but it'll take a day or so to find them - PM me if you think they'll help.
|
|
|
