Anyone ever install a new O2 Sensor and have it read perfect voltage but other than that, it's dead?

 

in closed loop, should oscillate voltage...

 

Yes understand when it's working right

 

Very common, you can confirm with a scanner that graphs voltage. Cheap elm327 from Amazon and the free torque app will do it.

 

That is how I identified that I was getting the voltage. Bummer if its a defective unit right out of the box

 

That's fairly common with how delicate they are. Delivery guy drops them on your front step and they could go.

 

If you have a scanner that will chart, look at it from cold start, they shoudl start about 1v when cold and then after 2-3 minutes start cycling. If it does not do that - bad sensor. Easiest way to test is swap left to right assuming you have one good one.

 

Had that problem with a number of Bosch sensors purchased via AMZN. After 3rd try went with Walkers from AB and have never had an issue. Walker price is very good.

 

RockAuto has Walkers on sale right now - $23?

 

That was what I got from RA but it wasn't an Walker