i just found out that some dumbass (previous owner) did the hack job on my girlfriends cars(05 ex) stock secondary o2 plug the factory wire colors listed below i know that the two whites are the heater wires and black is signal and ground is gray just dont know which of these to solder which to


stock wiring colors
white/red
black/red
black/white
red

any help would be great did some research not coming up with much for colors of secondary

 

up

 

if you read i posted that heater white 2 of them signal black and gray ground

 

need to know asap have no idea what to hook what up to

 

What brand is the universal sensor? That might help in order to find an answer, otherwise, I have no idea. I tried to find some info by Googling it, but came up empty. Almost everything I found was for the primary sensor.

If I couldn't afford or otherwise didn't want to buy a new OEM unit, I'd find a used one and hope for the best.

 

ntk got it figured out already thanks found a ecu pin out and used an multi meter