Smelly GTV Phase 3 JTS
My GTV phase 3 JTS failed its emissions test first time - black smoke and strange smell! Used some magic stuff recommended by the garage (cataclean) and it passed! But the exhaust still smells - not the 'bad eggs' smell but something else which is toxic. The engine management light is not on which was the case before the second MOT - lampba sensors was the fault recorded.
Is the JTS 2 litre engine just naturally smelly or is there something wrong with the fuel system or the Cat? When cold, black smoke tends to come out (worse in winter).
Also, if it needs a new Cat does anyone know an alternative to the £1200 pounds Alfa want for a new one?
Would be grateful for any help.