EGR Vacuum Regulator (EVR)
" ... Install a vacuum gauge to the EVR outlet port and using a hand-held vacuum pump, apply vacuum to the manifold vacuum supply inlet port. Vacuum should hold and no vacuum should be indicated at the gauge. If not, replace valve. ..."
So I get to buy a new one.
Where other than the dealership can I order this part. All the local auto part stores don't have it or can't even order it.