So long story short picked up a 2005 A4 3.0 6 speed 2 months ago and ever since i had it its given me a problem on a warm start. If the car sits any where from 1 to 3 hours it turns over and cranks for a good 15 20 sec before it will start. Weird thing is it doesnt do it in the morning or whenever it sits for 4 or so hours. brought it back to the subaru dealer i bought it from who then brought it to a local audi dealer where they kept it for over a week and still didnt fix it. Dealer said they checked the spark plugs, cylinders, took the "head" off (which i find doubtful) and swapped fuel injectors. I have no CEL's and the dealer said it had a code for a miss fire in cylinders 2 and 3. I changed the CTS a month ago and tried sea foam and still did nothing. I'm thinking and have thought from the beginning that the fuel injectors are leaking into the cylinders while it sits but figure Audi would have checked and fixed that but i guess not. But thats it! if youve read this far i appreciate it lol and any input would be very appreciated!