Hey Just An Update. I Took My Car To The Dealer To See What They Could Find Out About The Burning Smell. They Checked The Car Out And Said That Nothing Was Wrong And That The Cat Was Flowing Fine And All The Sensors Are Working Well. They Also Said That Maybe It Is The Gas I Am Using. I Told Them I Only Run High Octane Gas. I Let The Gas Run Low And I Put New Gas In. The Smellll Is Still There. I Dont Know What To Do. I Am Thinking About Going To Another Chevy Dealer. The Car Only Has 9,000 Miles. Any Sugestions.