I have a 2006 aveo LT 1.6L... okay problem small evap leak theres no check engine light but there is a code stored for small evap leak and I do smell gas while driving from time to time would anybody please tell me the name of each part involved in the evap system and where its located please... one more thing when its slightly cold and my car has been sitting over night when I crank it the check engine light comes on for about 20 seconds then flashes 5 times and shuts off and never cuts back on again until car has been sitting over night