I have my car check up again cause of the engine light on and it show P0455, however, the guy in the autozone want me to make sure that my gas cap is close tie and not lose. However, i am reading the code right now for P0455 is : Leak Or Blockage Detected In Evaporative Emission Control System *EEC* i think. What is that? Does that mean I need to replace EEC system? just wonder. Do ya know where it is located at? Right now I just reseat the computer for right now, and there is no gas leak or anything under the car or any gas smell. also i put some gas treatment in it for right now to see if that will help. Please let me know what I need to do ASAP.

Thanks
David