de-commissioned doser go bad?

[Marajin]

The supply line for the doser is here...



I see a lot of guys with de-mandated trucks take the plug that came out of the intake manifold where they installed a boost gauge and use it to plug the doser line off. If you remove the supply hose (in the picture above) and also the hex-shaped adapter behind it, then the plug fits perfectly into the hole in the IFSM.