Bench testing o2 sensors

[RiffRaffMama]

I’ve got a couple of o2 sensors (VT/VX) that are not installed so I need the mV ranges I’m checking for when hot and cold, but out of the car (bench test) if someone can help please.
Thanks

 

[07GTS]

without a controlled AFR environment it would be very hard to check for readings on any accurate style of test, the sensors dont know what they are putting out mv wise as the ecu is controlling the fuel to them above/below the stoich point ''closed loop'' for the ecu to then know where fueling is

 

[BlackVXGTS]

07GTS is correct, refer to the attached FYI.

 

[jeepster]

07GTS is correct, refer to the attached FYI.

Thanks, that was interesting read. But I recall replacing sensors on my mum's Acclaim and one of them was covered in soot. So it doesn't always burn off in 2 minutes?

 

[07GTS]

if one or both are cover in soot then the afr is not stoich so will not burn off, best at operating temp in CL should keep them clean unless there are other issues or events causing it