[JoergM]

Sounds like an air leak in the fuel lines?

I am battling an air leak now for months and I am not sure where it is coming from. It has similar symptoms and does not show any codes.

However, these are typically in the beginning when I start the car (once it runs, the fuel gets pulled from the tank). It started when I installed the new fuel filter so I assume somewhere around this area air is getting pulled.

If you have a larger air pocket in your lines (typically you wont see it since they are covered with this black protective layer) and it is suddenly getting pushed to your injector lines this could happen.