So I have an '06 ls that threw a p0401 and p0106 CEL code. Looked up the p0106 code on here and it told me it was the plastic orange vacuum lines coming from the egr valve. Replaced the lines with new rubber line and put everything back the way it was. Went to start up the car and to started fine. Turned it off and tried to start it again, and it wouldn't start at all. Its like its not getting gas. Anyone have any ideas what might be going on? Had the car for 3 years and it's never done this.