I have OBDI now so I have 2 O2 that ain't doin nothin. The right bank one is fluctuating while the other stays steady... Would swapping the front and back change anything? Maybe to tell me if I need new o2's, I have 70K on these.

 

you cant swap the front and rear O2 sensors, they have different connectors

 

I think you got it backwards, the one that is fluctuating is probably the good one while the one that is staying steady is the bad one

 

Hmmm time for new o2's then. Whos got them the cheapest nowadays? I haven't ordered from jason or dal in a while. I know sam smith is no more right?

 

Switch the left and right pre-cat O2 sensors, and that will tell you if you have a sensor problem of a wiring problem. If the problem follows the sensor, its a sensor problem, if the problem stays on the left side (the inactive sensor) its the wiring.

 

Thanks fred i didn't realize that...