Ok, this is awesome..

So should I keep the EVRV and splice in the two wires into the old plug or should I swap out the EVRW with a EGR Vacuum Solenoid.
https://www.oreillyauto.com/detail/b...Solenoid&pos=0

The Truck is listed as a 1988, yet parts dealers don't show an R30 for 1998, I have to then search for the 1997 R30.