hi first of all I would like to know if my 06 hdi dyna wg has o2 sensors or not ? dealer told me I dont ? why I am asking is that after I installed stage 1 download ( calibration id is 34385-06 ) with se mufflers and se ac, dtc throw error codes p0134 and p0154 which are front and rear o2 sensors. and I cant get rid of these codes. what is the reason of codes. if my bike does not have o2 sensors then why I get codes ??? thanks in advance