age is only a number
AO Gold Member
Join Date: Aug 2004
Difficult to tell from your description - if one of the cats was breaking up it could cause a partial blockage and create issues....or it could be a faulty coil pack, or, probably much more likely, the ever-popular oil down the plughole joke - normally on number 1 cylinder, where oil spilt when topping up runs down - or of course oil can leak past the seal on the cam cover. If you get a build-up of oil there it can short out the HT lead to the plug, causing a misfire. This would normally trigger a warning light/message, though....
AROC Vice-Chairman and Lancashire Section Secretary
Alfa organ donor to the gentry......