dealer i spoke to was not aware of any mods to the sensor and had not sold one in over 12 months,i saw in the archives what you speak of but i think that was for x engine codes,poss omega 2000.my thoughts are with what the cam sensor displays.the hall effect pattern shows all the "legs" as the same no difference in length or amplitude so if it is a cylinder identification sensor how does it know what position the cam is in?how would you set up a fluke scope to see both cank and cam sensors together with regard to triggering and what is a likely good pattern .thanks in advance regards paul