The DG/BK wire is the power feed for the injectors from the PM 10 pin connector cavity #6.
This is the ASD relay output which also powers the fuel pump and + coil.
If the PM is the issue you will not have any power at cavity #6.
Be sure the terminal is not broken/pushed out in the connector if no power is present.
Manually actuate the ASD and see if power is present at the fuel pump,+ coil and injector connector DG/BK wire.
To manually actuate the ASD....
1)Locate the diagnostic connector
2)With the key on/engine off ground the DB/YL wire in the diag connector.
(A code 42 will be set in memory, not a problem)
Post Back with your results.