- Apr 22, 2013
- 746
I got this code yesterday. Trailblazer has approximately 145k miles. Have never changed the 02 sensors. I did get a code for the front 02 many thousand of miles ago. Changed it to another non OEM and then switched it back to the previous O2 sensor. Code never came back. I do have a K&N filter that I haven't yet cleaned yet. Will swing by and pick up a infrared thermometer possibly later on and get before and after cat temps.
My take. Front O2 looked really lazy, Post O2 cat seemed pretty steady.
Video uploading:
http://youtu.be/qoCd2I0CfI0
My take. Front O2 looked really lazy, Post O2 cat seemed pretty steady.
Video uploading:
http://youtu.be/qoCd2I0CfI0