It was located under the battery shelf in my CS.
Thanks!!Charcoal cannister that traps gas tank fumes, then is sucked into carburetor when engine is running. Attaches to the plastic vent accumulator tank in the trunk via a long blue (and often brittle/cracked) plastic hose from trunk, into interior, out the passenger firewall and across to driver side then down to the cannister. Then a small hose goes from that up to the stock air cleaner. I eliminated mine as it is a frequent source of gas odors.