That won't work because the car isnt reading that an 02 sensor is plugged in, hence the voltage suggestions. A de fouler will help cars read less emissions like when ppl remove cats.Their right... My cel is the same o2 and reads no activity detected but sometimes it also reads that it is too high at the same time. My front o2 voltage os between .30-.35 while the back is about .29. I think im going to go to vast the audi performance shop and grab an angled defouler and try that.
What is the code exactly? If it's p0420 your sensor is probably ok but the cat is not doing it's job anymore or there is a leak in the exhaust system before the second sensor.Hmmm...well, okay. If it's never the problem, then what would cause
the car to throw the code? I don't seem to be having any other issues.