I was doing my morning scan on the way to work as it is getting colder outside and as I was waiting for the light to turn green I see my front o2 sensor going a little crazy. Is this normal? I mean I know that it fluctuates to correct the AFR but this bad? I have a Denso sensor in there now that I installed maybe a year ago, but I do have a new Bosch sensor just sitting at home. I might install the Bosch this weekend and see if I get a different response.
O2 Sensor.JPG