O2 mini volts

[Haynesie]

on the ScanMaster, what readings should i be getting for o2 minivolts, mine are all over the place sometimes at 50, and sometimes as high as 850, and its under idle or Wot when i see these numbefrs

 

[Black Car]

The only time to consider the O2 numbers is at WOT. Then you need from 780 to 820 on the scanmaster.
The numbers are suppose to jump from low to high under normal driving. Actually they change a lots more than the SM shows.
Cross counts is the term used to refer to the changes. If you have the newer SM you should have that feature on it.

Gary

 

[Haynesie]

ok thanks for the info