Weird O2 readings

[MauDeuce50]

I just put in a scanmaster not to long ago and it gives me o2 readings that fluctuate between 050 and 800. Is that just a bad sensor?

 

[Braxton Jordt]

Is this at an idle?

Posted from the TurboBuick.Com mobile app

 

[MauDeuce50]

Is this at an idle?

Posted from the TurboBuick.Com mobile app

Both idle and driving

 

[TurboDave]

Wildly varying O2 readings during idle and cruise are perfectly normal. It's how the O2 sensor cross counts to maintain proper air fuel ratio during idle and cruise. When getting hard on the throttle you'll notice the O2's stabalize on the higher value in the high 700's to low 800's.

 

[MauDeuce50]

Wildly varying O2 readings during idle and cruise are perfectly normal. It's how the O2 sensor cross counts to maintain proper air fuel ratio during idle and cruise. When getting hard on the throttle you'll notice the O2's stabalize on the higher value in the high 700's to low 800's.

Ok thanks