FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: dod_bolePlease Login or Register to create posts and topics.Post History: dod_boledod_boleUserProfilePost HistoryNew user here. I have a ULS 70051 that I bought a while ago. Harness has been on my build for a wh …In: ECU Drops out when 02 sensors connected8 months ago