Bad O2 Sensor pictures

[dhracer3]

I Just replaced my O2 Sensor and I know that at one time I came across a picture chart of O2 sensors that had gone bad due to other problems like Head Gasket leak or to rich of fuel mixture.

Does anyone know what I'm talking about and can share a link.. I want to check my O2 sensor that I just replaced since it had some white residue on it and looked pretty burnt.

 

[Gerdo]

You can't tell the condition of an O2 sensor like you can with a sparkplug.

You can test it with an ohm meter.

 

[dhracer3]

No i understand you cant look at an O2 sensor and tell if its bad or not.
What I'm saying is there are pictures out there that show O2 sensors that went bad for other reasons. It shows an O2 sensor that went bad due to a headgasket blown and there are some other pictures along with that one with other engine problems.
In a way I want to see if my engine is running well enough by looking at the O2 sensor. I want to be able to tell the history of the motor by looking at the carbon build up.
My O2 sensor is sort of White which makes me think that the engine had a leaking headgasket?