FiTech EFI Tuning Forum MenuForum NavigationForumMembersActivityLoginRegisterForum breadcrumbs - You are here:ForumPost History: spitzmicPlease Login or Register to create posts and topics.Post History: spitzmicspitzmicUserProfilePost HistoryI have a very loud whistle coming from the throttle body at partial throttle under load. I've …In: LS Throttle Body Whistle6 years agoIt's a mild build, but so far it works pretty well. My wife uses it as her daily driver and we …In: 1965 CJ5 with Ultimate LS6 years agoHave you checked that the wiring isn't reversed? Also, you can try a different ver …In: vss help with older 4wd transfer case6 years ago