This is far for "slight". Basically the car almost stalls, then forces itself up to over 1000 RPM to remain running. I am running the latest DME version (or so I am told), when I got my PPK upgrade installed. But, the car did it before and after the PPK, so it has nothing to do with that.
2011 AW E90 335i M-Sport | PPK | Alpina Flash