charcoal canister?
#3
Rotary Freak
iTrader: (3)
It is part of the evaporative emissions control system. It sends vapors produced in the gas tank into the combustion chambers to be burnt off so they don't just vent into the atmosphere releasing unwanted hydrocarbons. Just leave it on... it is also part of the visual and now (95 and older) functional portion of a smog check here in CA.