How reliable are these sensors? I read a lot of people mistake a EGR value for this sensor fault.
I have a check engine light that comes on from time to time.. No , I haven't had the system scan yet but I would bet this is my problem. And since I plan to buy new exhaust sensors anyway I didn't had it scan. I found where its at under the hood. It has two small hoses connect to it. I don't want to damage these hoses so I was wonder how to remove them? Do they just slide off or are they clamp on?