O2 readings

[dmorgan]

Hi,
I just hooked up power logger with a new denso o2, and the readings for the o2 jumps all over the place 200-863 at idle.
The x counts are in the hundreds and I never pulled the car out of the garage?
What should these numbers be?
Could a new sensor be bad? I do have it loaded with race gas.
Thanks
Dan

 

[WHEEZER]

I;ve never owned a powerlogger so I can't speak on that actually but a scanmaster will move all around like that at idle also. If the race gas is leaded o2 sensors usually don't live that long. HTH.

 

[mikestertwo]

Those numbers are normal. When they don't move around you have a problem. Hopefully your not using leaded gas. It will kill the sensor in short order.

 

[Boost231]

Those numbers are normal. When they don't move around you have a problem. Hopefully your not using leaded gas. It will kill the sensor in short order.

you can run leaded no problem but you will be replacing O2 sensors more often. those #'s are fine. However when you go WOT they shouldnt bounce around like that, they should be more soild.