The cheap valve started triggering CE light every few days in four week, in two more weeks, it went permanently bad. When I took it off, I could see some exhaust leaks from the valve itself.

I ended up putting the original valve back on with a block off plate (made from soda can). I still have CE light, but I am CERTAIN that there is no exhaust gasses entering my intake. Gas mileage had improved from ~13.3 MPG to 15.1 MPG, I am not sure if this was from blocking off EGR or from warmer weather.

My VX will be 15 years old next year, so no more OBD2 inspections!