Took the car out for a tuning run tonight and the last pull we did I looked down and had no O2 voltage. The rest of the 15 or so pulls it was fine.
The new stock sensor is Maybe 5,000 miles old.
Checked all the wires under the hood to the sensor they look all good.
Not getting voltage on my logger or on the Apexi turbo timer.
Any ideas where to check next??
How would I test the sensor itself if its bad? Is there a way to check the voltage of it with a multi-meter and find the voltage? If so what color wires do I probe with the meter??
I havent really got a chance to look at much I just got back from the run and just made a check under the hood.

Ideas??

is it just not giving you anything, like zeros or a single number or what? it has to do something.

i know since i got my car running again my 02 voltage doesnt cycle like it should. when i start the car it will sit at like 5 or 6 or whatever for a while, then after i get good and warm it will cycle sometimes and randomly go back to just a single number. im picking up a new 02 sensor tomorrow for my issue.

maybe they look like this?

lol ouch!

i hope not. ;-) my new sensor gets here wednesday. too bad track is open on tuesday. guess i will be running like a turd for my first runs. :-)

Well, I took out the sensor when I got home from work today and It looked like brand new.
Plugged it back in and it works fine...
Hell if I know what was wrong, Can you "overheat" the sensor?
I did prolly 15-20 WOT pulls last night tuning.

maybe it wasnt tight enough and air was getting in and affecting the signal. maybe i will try to tighten mine up some.

what would make complete sense, i just installed my exhaust, it worked fine before the exhaust install. my "not tight enough" theory seems like it might work. lets hope, i cant get my new sensor until after tuesday, which happens to be the day that i am running the car at the track.

It was tight enough, I had a hell of a time getting it out lol