I now know the following:

1. The vacuum pump provides good vacuum.
2. The brake booster side of things is fine.
3. The white line that goes from pump and splits into green and white (headrests) is fine.
4. Door locks are fine.

Since the passenger side of the vacuum system is offline because of the wastegate swap, I guess I know that that problem lies downstream from the remaining vacuum outlet.

That's what I know so far.

__________________
14 E250 Bluetec 4Matic "Sinclair", Palladium Silver on Black, 159k miles
06 E320 CDI "Rutherford", Black on Tan, 179k mi, Stage 1 tune, tuned TCU
91 300D "Otis", Smoke Silver on Tan, 145k mi, wastegate conversion, ALDA delete

19 Honda CR-V EX 77k mi
Fourteen other MB's owned and sold
1961 Very Tolerant Wife