P0136 Downstream Heated Oxygen Sensor circuit fault - Bank No. 1
This is very strange. I just got this read at AZ. The problem is I have MIL eliminators installed, and just finished a 1500 mile trip and no CEL. I'm driving around town yesterday in 99F heat...and there it pops?
One thing I can think of...is that my IAC tube slipped off my CTA intake...so I was sucking a lot of air post-MAF when the CEL came on. Could this have been what caused this?
TIA