Well, it didn't pick up any codes. I put in the new cts and the car started up right away so I guess we'll have to wait and find out

 

This is what it looked like. I'm guessing it had never been replaced lol.

 

im having pretty close to the same problem with my 03 a4 1.8t and i was just wondering where the cts for the ecu is located on the motor a picture would be ver helpfull and is that cts a 2 prong or a 4 prong? thank you

 

It's a 4 prong.

Here's the diy for a b6
http://www.audiworld.com/tech/eng66.shtml