The dealer tells me that the gas cap light is on due to a cracked Evap canister ..I need to find out where the canister is so that I can order the part .... I cant find a part labeled evap canister so I am guessing its actually called a Vapor canister .. at any rate, I need to know where it is located to find out if it is "round" or "square"... then once I have the part, Ill install it myself.

Tks