In technical terms, the transducers can get some "schmutz" inside them which can make them less responsive than they need to be. I have opened them up and seen it firsthand (though I don't recommend doing this because it is a one-way trip to the trashcan) .

If the OP wants to be proactive he can order a new one and replace the one on the EGR (which he swapped from the wastegate actuator) or just drive and not worry about it until the EGR throws a code, which may never happen. You won't do any harm driving as it is if the system isn't throwing a CEL.

A better thing to do than spend the money on a new transducer is replace the two little vent filters on the ends of the vent lines...those are what let the schmutz in and can cause CEL's on their own if they have any resistance to flow at all. They run about $10 a piece but should be replaced every 5 years or so.

__________________
Marty D.

2013 C300 4Matic
1984 BMW 733i
2013 Lincoln MKz