The EGR and Oxygen monitors are reading as incomplete and preventing my civic from passing smog. Took it to a garage, they tested the EGR and it supposedly works, they replaced both o2 sensors, and nothing has changed. I've put over 100 miles on it since the sensors were installed. Kinda at my wits end about this. I found a smog and repair place that I can take it to. Anything I could try on my own? I've tried drive cycles and they haven't worked either. Thanks for any advice. It's a 2005 lx.

 

Maybe there's a problem with the catalytic , What about any codes ? If a monitor doesn't set in that long a time it'll throw a code Yes ? / No ?