To follow up. I followed ArmyX5's suggestion, took the valve off and cleaned it through. I also cleaned the secondary airflow sensor with a MAF cleaning spray. When I inspected the pressure pipe connecting the air pump and the valve, I noticed some moisture in the pipe (condensed water) which I thought was a bit weird.

Before I cleaned the valve, I tried to blow through it and it does allow air going one direction to the engine block. So, I don't know how that mechanics works or if something in the stuck or blocking.

So, I couldn't be definitive on whether cleaning the senor or the valve done the trick. After I reset the code, it hasn't been back for the last 7 days.