I recently installed Hooker LT headers and matching o/r x-pipe. My "Service Engine Soon" light keeps coming on. I have the Diablo Predator so I am able to read the fault codes. The codes are PO136, PO141, PO156, PO161, and PO174. The first three codes appear to be connected with the O2 sensors. I can erase the fault codes with my Predator but they return within a short amount of time. Will MIL eliminators take care of this problem?