Renault

I have a renault scenic 2004 number plate engine check light come on with check emission someone know what this is and what are the exact parts need to be change thanks

Hi as above, although it is normally referred to as a toxic fume or lamda sensor. these measure emissions going through your exhaust. it may not need replacing, sometimes carbon deposits build up on it causing it to monitor incorrectly, so all it may need is a clean.nice luck