hyundia coupe help

[blondieb]

my gen 2 coupe is starting to shudder when driving, and a really bad smell of sulphur coming from somewere i dont know, any one any ideas
it seems as tho its misfiring

[Skids]

Maybe being choked by a nackered exhaust/cat.

[Evilninja]

Hi

if it smells like sulphur or bad eggs, 99% chance that you catalytic convertor has gone. Which in turn would account for the misfire as pressure is wrong on the exhaust.

easy enough fix, but sadly an expensive one !