I am dumb. im looking for the voltage wire that comes from the front o2 sensor on the foward exhaust manifold. it is supose to come inside the car to the ecu (i think) to tell the car the air\fuel ratio. I am tryin to install a AF meter, but cant find this wire. I have hanynes manual, dosent help much. I have a 5th gen but its a 3.0. Please help!

 

its the white one in the middle. make sure when you splice the wires there will be double wrappings.... when u splice just pull back all the little silver wires out and there should be a thicker wire in the middle. you want to use THAT WIRE or else you will get a CEL light and most likely you will run lean. I fixed mine and learned about 2 months.

 

ok, so if ur talking about inside the engine bay... i would need to run my wire inside the car, through the firewall... idk where that is either. lol i feel dumb srry