Highway speed 02 numbers on scanmaster?

[TA49-WE4]

Just wondering what 02 numbers people are getting on there scanmaster when they are just crusing down the highway at 55 to 65 mph.

My cars numbers are all over the place 000 to 800. reads like this 011, 760, 801, 459, 625, etc. Numbers are all over the chart. Maybe this is normal?

 

[bmackinnon]

Yep... normal. Cruise O2's jump all over the place. Shows your o2 sensor is working... and the ecu is responding accordingly... :smile:

 

[TA49-WE4]

Thanks bmackinnon