At what mileage di your 02 sensor fail

My CEL came on got 63K on trk checked coolant level, radiator full added about a pint to the reservoir, loosened and re tightened the gas cap, tuned up 10 K ago runs fine, MPG good,disconnected the neg cable re set the CEL so far so good.

 

113K and mine went out. The sensor was fine it was the heating element that went out.

 

Mine died at 120k

 

Both of mine went about the same time (within a few thousand miles)....between 140k and 150k.

edit: You know auto zone will read the CEL for you, for free?

 

Mine died at about 90k. It was right after I did the sea-foam cleaning. I was told that it can loosen the particles in the engine which clogs up the sensor. I ordered it online, same OEM Denso unit that the dealer installs, but it was about 1/2 the price and 10 minutes to install.

 

Gotta love "Rock-Auto"

 

Around 140k, just the pre cat one. Think I need to do the rear though here soon too.

 

Eventually they will go bad it is an expendable part there are things that can cause it to go south sooner but they will ware out.