Right, my 1.2 is feeling very lumpy at idle, when pulling away and whilst driving along. I have the feeling that it could be the spark plugs? So have booked it in to have those changed over. But I was just driving down to the gym when the Toxic Fume light started to flash and its flashing constantly, the engine sounds not normal, could it be the plugs arent firing each time and unburnt fuel is making its way to the sensor? Eventually ruining my cat?