Hi the S8 I am driving has started to miss fire for some reason. Does it randomly at all revs and clears if I stop for a short while and is as sweeet as a nut after. The CAT light comes on I suppose due to the missing and it getting unburnt fuel through to the cats. Anyone any experience of this and what the cause may be?

Daedlaus

 

get the fault codes it could be the MAF sensor or wiring to it