Sorry to hear that ,I cant think of anything else as I had stopped when I changed the O2 sensors. Mind you I was chasing this starting 10/15 started with cleaning IACV,DISA, MAF and inspecting the intake boots,whatever was in the area,didnt touch the fuel injectors but treated 2 full tanks of gas with cleaners,didnt work,still getting intermittent P1093 code,lived with it and reset as needed, only thing i changed was the fuel filter since it was original at 120k,up until 3/16 when it was warmer when I was able to check the O2 sensors....hope somebody on here with more expertise can help you out, try our brothers at e46fanatics, see if they can help you out...X5 3.0 now has 125K miles, nothing new added since the last oxygen sensor was changed,no P1093.