I own a 2005 Nissan Sentra 1.8 SE, I recently had the check engine light come on, It only stayed on for 2 days and then turned back off but I brought it in to my mechanic anyways. They tested it and told me it was code P1138 and recomended I get a new Swirl control valve but it is on backorder for 3 months. My mechanic told me I souldnt have any problems driving it around just not to go on any long trips. I have been driving my car for about 2 weeks and then two days ago when I started it up in the morning it made a sort of squeaking sound and felt a little rough for about 3 minutes, then it seemed fine. I went to school this morning, heard nothing, it seemed ok, then I came home parked for about 5 hours and when I went to start up my car again it wouldnt start, It turns over but wont start. I tryed starting it about 7 times turning it over for about 2-3 seconds each time. No Luck, I just cant get it to start. I read up and I cant find anything that says this Swirl Valve will keep it from starting, maby im not looking good enough? Has anyone heard of this? I would love to get some feedback on what it may be before taking it back to the dealership and paying a fortune for them to tell me I still have to wait for this part. I kinda feel like I get taken advantage of because Im a girl so I would like to go in there with some ideas. Please help!