So, I was offroading this weekend and my check engine light came on. I noticed that the 4 wires that come from my oxygen sensor were pulled out from the harness. I need to plug them back in, but I'm not sure which wires go where.

There are 4 wires:

2 blacks ( I beleive these go on the top 2 ports of the plug)
1 White ( I think this goes on the lower right of the plug)
1 Blue ( I think this one goes lower left)

I have attached a drawing of the plug that connects from the o2 sensor. Can someone please let me know if the wiring is correct?

THANKS!!!

BTW this is for a 3.4 non-cali emissions truck and the sensor is located downstream from the cat.

 

try this link,http://www.ncttora.com/fsm/index.html not as simple as someone looking under their hood but at least might get you the info...good luck, I hate wiring...