in a hurry trying to change my o2 and the replacemt dose not have a plug so I need to splice wire. here is my ? the stock plug has 2 white wires one black and one grey, the replacment has 2 black one green and one white. what wires go to what wires????

If you bought a bosch then there's a wire conversion list in the instructions. I know for a fact that the wires there are 2 of go to the others there are 2 of. Those should be your +. The other two are your heater ground and sensor wire.

i figured the 2 white one's went with the 2 black one, but not sure where to put the other 2. i didn't buy this it was a replacement that was in the back seat of the galant from when spy had it, but never put on. would you think that the other wires would go light to light dark to dark??

Why don't you call a parts place and tell them you lost the directions and need to know how to hook it up. Most parts stores will do that for you.

I did but I don't know what brand it is, and the only one they had there had the same colored wires as the factory one.

You could always put them side by side. Find a common mark to go by and match them that way.

nevermind I got it all worked out