which wire is the signal wire on a d16y8 o2 sensor for a air/fuel gauge there is a green,white and two black

 

just replying to myself the green is the signal wire if ANYONE WANTS TO KNOW the white is ground and two black are heating

 

wow did you search and find something on your own congratulations on not being a *** anymore :1

 

I'm looking at the service manual and it says that the white wire is the signal wire. Unless you got some jacked up O2 sensor, please don't post false info.

If you want to check for sure, just disconnect the O2 plug, start the car, wait for it to warm up, and check the white and green wire for polarity. Whichever is "positive" is the signal wire. The stock O2 sensor will put out voltage when it is warm and there is fuel vapor. The reaction inside the sensor creates the voltage across the two wires. Think of it as a 1V powerplant that needs heat and fuel vapor to create voltage.

 

wrong forum cocknose

 

Queeef!!!