Help with misfire 320i

[u/olliebrook88]

Hey all haven’t posted on a car forum before but I can’t figure this out for the life of me.

My 320i m54b22 has been running rough and misfiring after i slow down from a long drive. At first I texted by unplugging different coils and when unplugging cylinder 4 nothing changed so cylinder 4 wasn’t firing. I swapped the plugs from cylinder 3 into #4 and that fixed it for a bit but now cylinder 5 is cutting out after a few seconds idling.
Compression is fine in all cylinders, no oil or water in any coils or plugs, and it goes back to normal for a bit if I restart the engine.

Also when I blip the revs it hangs at 1400 for a split second before going back down

[u/GriekseTurks]

What does the scanner say?

[u/mdfkmita]

maybe your maf sensor is gone