It seems to. If you go back in there is nothing either pending or active.
The airbox has "chattered" a lot looking at the fibreglass & I guess it moves & air leaks in after the MAF. I will try to repair it on Monday.
I am considering ordering a K&N induction kit as belt and braces as it replaces the MAF holder but of course the filter is in the hot zone of the engine. Has anyone done this?