Alright I've never owned an Audi before this but I got an 01 Audi A4 with the 1.8t, pulled the engine out and rebuilt the whole thing put it back in and it runs just fine, but my problem is that when you go to start it sometimes it will start and other times it will just turn over and over, but if you pull the key out and try it again it will sometimes start, now talking to a few people around town they were telling me I had to recalibrate the tps sensor or throttle body position sensor, No idea how to do, I also just replaced the camshaft position sensor because it was throwing a check light for that as well, Any help would be appreciated Thanks!