Don't remember how I got to the thread, I spend a lot of time just reading threads and learning new things, but I was reading a long thread about the sensor and the tube. Anyway, I checked my tube and it was clogged. I unclogged it and it did'nt make a difference in the way it drives. I have my back pressure valve unplugged and tied open, so I know it won't affect that, but according to what I read, the sensor slightly affects fueling. So maybe it will help mpg's, or maybe it won't. It might be wishful thinking, but it might have slightly improved idle (less shaking).