f-150 5.4L MIL eliminators?
question?
What do you do with the second set (rear) of o2 sensors if you go to a 2 cat setup?
I know you need the mil to keep the check engine light off but dont the sensors have to be hooked to the MIL for it to work?
I know you need the mil to keep the check engine light off but dont the sensors have to be hooked to the MIL for it to work?


