fitted a hid kit last night and tested lights inbetweel etc to make sure all working had air box off to fit them but its all back on and correct but afterwards the elm / emmitions light is on dash, discnnected battery for 5 mins and re conected its still their, i know it wont have anything to do with the hid kit but could it be because i turned ingition half way so lighst could come on well air box was un plugged?

as said i didnt fire teh car up just turned enough to put lights on

still runs fine just has teh ligh on dash

any one know why or will this be a problem that not related and just coincidence its just came up ?