Thanks to everyone for the suggestions and help and especially @Tomvw for diagnosing the injectors. Once the new injectors were installed she purred like a kitten. For those who are interested I'm running with the new ECU that I purchased off of Ali Express for $100. The remaining mystery to be solved is whether my original ECU was faulty or not. In the near future I'm going to swap it in and see if it creates any of the issues that I was previously experiencing. I need to do that before I begin to try to recoup the money that the stealership took from me. It doesn't matter either way but my case is stronger against them if my original ECU was functioning. Just a reminder: they took me for $1500 and then refused to fix the car because VW no longer makes the ECU.