I know for sure i have an 0440 code being thrown right now. Guess it has to do with the evap system.I have checked all over for leaks and replaced rotted rubber hoses and such. Could this code have sumthing to do with the engine spuddering. When i went to autozone they checked the SES and told me i just needed a new gas cap which was bull****. I already replaced it before i took it to them to scan the SES