I have an 07 Audi A4 2.0T B7 with 155,000 miles and it would not start out the blue after parking it overnight and the next morning it was really cold outside. I had to replace the low and high pressure fuel pumps , cam follower, spark plugs, fuel filter and the PCV. I can start it and let it run but after 25 min or so it will shut off then will not restart. There are no codes. I had replaced the cam positioning sensor about 8 months ago as well. Has anyone else had this issue and if so what else could be the problem? Thanks in advance.