Hi Guys, I am in progressing of swapping 5.4l DOHC engine in 99 mustang gt. I am canceling the rear O2 sensors. So I got confused which wires go to the front sensors. Now I have 4 wires and 2 sensors. Each wire have different color. How do I know which go to which? does anyone know? Thnx
Just wondering. You are aware that each O2 sensor is supposed to have (4) wires right? Two are for the O2 heaters and two are for the O2 sensor itself.
If interested in getting a full copy of the Ford service manual with wiring diagrams I maybe able to help. PM if interested.
Yes I am aware of that. Sorry. I meant the o2 sensors plugs, not wires. There are 4 plugs (piggy tail) FORGIVE MY BROKEN ENGLISH. coming out of the harness to the 4 sensors. How do I know which plug go to which senaor?