Should look like this according to rockauto.
You probably have the plastic upper intake manifold, so I'm not sure where Ford put it.
Mine is bolted right at the top of the manifold sort of beside the throttle valve.
Look for the EGR chimney pipe off the exhaust, there will be two tubes running from it _ follow the tubes to the DPFE sensor.
I'm not saying that this will solve your original problem, but if you're still running the metal one, it may contribute to it.
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