My wife's C30R had a check engine light come on recently. Scanning indicates a P0440 code.

I believe this is the same code it had when we bought it used around 2.25 years and 12k miles ago. The dealer changed the gas cap, but when that didn't work, did something else. Upon reading online, I'm assuming there was a leak near the charcoal canister.

Where is the canister located on these?

Anyone have any thoughts of the trouble-shooting variety?