I knew with the headers I would most likely need to do something with the O2 sensors. I'm not opposed to the simulators but I think I will try the spacers first since they are cheap and it sounds like most header guys have had this take care of their issues.
So what I am curious of is yesterday I drove about 30 miles with no CEL. This morning on my way to work on my first deceleration I got a CEL. Scanned it and came up with a P0430 (as I expected a 0420 or 0430). With the scanner plugged in I watched both #2 sensors and under acceleration and idle they run nearly identical patterns, however during deceleration I get this.
My question is this: Is my bank 2 sensor 2 not performing as it should or is there that much flow difference between the right and left DT header?
I realize they will act differently after headers and probably throw a code but my thoughts are that they would both change approx. the same.