I will go back to the stock intake hose as soon as I get the return label from Mishimoto to return their 2016 disaster. Code is back, I now need a fix for the "fix", they even sent a complete assembly that as usual was not tested! Don't know know what I will do to replace it as all the "adapters" seem to block off a factory connection, so I need to look at why. Does anyone know the reason Ford did this for the 2016 and 2017 models?
I don't think it was an Emission issue as new laws have not come into play as far as I can tell, my understanding is the Evap line is plumbed to the intake for airflow. My "understandings" are often misunderstandings so anyone with a better knowledge jump in here please. I would think it was always plumbed to a vacuum line someplace so what prompted design changes that cost lots of money? What made Ford do this, I am hesitant to outguess Ford on this without understanding what is going on, was it a safety issue, reliability, performance? I see complaints of poor performance after a fill-up, was this the cure or are '16's also affected? I have never experienced it and habitually force every drop I can into my tank filling up. Still looking for a plug and play solution until I get it sorted out.