video: How to check if your wideband O2 sensor is good

nice find. thought this was a pretty cool product too:

http://www.aemonly.com/no-weld-o2-bungs … fa66da171d

That is good to know. I am assuming it is the same with the analog AEM wide bands too.

I clicked that "video" link and avast said threat detected…

It's just a vid showing if you let your O2 sensor warm up, then put it in a brake cleaner soaked rag, it will read full rich and stay there if the sensor is good. If not, it will read full rich, then go full lean even though it is still in the soaked rag.