FSI misfire solved ???

Hi all new to club I would like to share my findings with you all on what has happened with my Fsi so far.   I bought it cheap as it has/had a misfire and lack of power. I found the inlet flap actuator was missing (GREAT) I thought 😭 Previous owner drove it for 18 months like this until misfire started.

Anyway I started of with plugs and coils and injection cleaner still had a miss. Now the interesting bit it never had the start up clatter that 90% of fsi  owners report until yesterday after a short drive I started it again to drive it into the garage I was met with quite a clatter for a couple of seconds or so it settled into a nice idle strange I thought it even reved  nicely so I take it for another short drive it went like a rocket all the lack of power and missing had gone😃😃

I am a bit stumped as the only codes I had were for the inlet flaps and multiple misfires  Now I am thinking was the cam variator stuck and then freed itself any thoughts on this???