02 sensor reading

[burgies08ultra]

can someone look at my 02 readings on the attached data run and tell me
if one or both the sensors need replacing??/ the rear cyl is the one that is
getting hot on stop n go traffic... 
https://www.box.com/shared/6kmu967rdfmpews5oqa4
thanks
burgie

[Coyote]

The rear doesn't look very active and the front one never switches at all. Does it look any better with the rpms up some?

[Rider57]

Looks like it is working. Most stock exhaust and placement issues look the same.

[rbabos]

Rear is fine. Front might be getting cooled with too much fuel from the seen ve differences and the ipw variance. How does it behave at engine temps higher than when this log was done? Never hit 180 in the log.
Ron

[burgies08ultra]

the front actually seems to work when the vtune is running, i guess it needed more heat..
still seems to lull sometimes, as does the rear..
but vtunes r coming around,..
thanks guys...
burgie

[Steve Cole]

Remember that Vtune itself has nothing to do with how the O2 works or reports. It is simply reporting what the ECM is doing. The ECM does the work and reports out what it has done, Vtune just shows it to you. To many people get confused about this. Once it's reported you need to figure out why it is or isn't working correctly.