1988 E350 1Ton
5.8L (Above 8500 GVR Engine)
Auto, No A/C

So as simple as this diagram appears I need help understanding which components are what. The abbreviations may make sense to a Ford tech, but I'm in the dark.

More specifically:

-> What are the (2) VRESER modules in the lower left hand corner?

-> What is the EVR module middle bottom?

-> What are the SOL V modules lower right?

-> What is the CPRV module between the throttle body and carbon canister?

Thanks in advance for any input!

 

More questions:

-> Why is the throttle body/CPRV/Carbon Canister circuit a dotted line?

-> Why on that dotted line, are some junctions open circles while others are filled circles?

 

Vreser = Vacuum Reservoir (Sometimes a Tomato Juice Can)
EVR =EGR Vacuum Regulator Valve
Sol V = Solenoid valve (controlled by the ECA)
TAB =Thermactor (air pump) Air By Pass Valve
TAD = Thermactor Air Divert
CPRV = Canister Purge Regulator Valve (Controls when canister purge takes place)
DIV = Diverter Valve
Air By Pass = Air By Pass Valve
Sometimes the dotted lines can mean ,If equippedm or part of a system
Other times there isn't enough room to show the tubing.

 

hanky!

You're awesome! Thank you. I found my Canister Purge Regulator Valve hanging by it's wire harness dangling inside the engine compartment.
I need to replace all the soft vacuum lines & hopefully be able to smog this behemoth.

Thanks Again!