Left WB Sensor plugged in all night

[Chalky]

Doing some logging two days ago and forgot to unplug WB02 Sensor from SM-AFR. Not sure if I damaged it or not. ANy way to tell? ANy idea how long an 02 can go without air moving over it?

[SSpdDmon]

It's harmful to run exhaust over an unpowered sensor. I don't think it's bad the other way around. Only down side is battery drain as far as I know.

[2002_z28_six_speed]

I don't think it ruined it. Leave your car off for a couple of hours. When you power it on if it says about 20% O2 AND if ur AFRs look about the same as before then the sensor is running ok.