Thanks for getting back to me, Mustang5L5. I disconnected the hose from EVR to the EGR (saucer)valve. BTW, before I continue, I pulled the VAC line off the VAC solenoid and blew threw it. I did not hear the air going back into the TB and it seemed blocked somewhere between all my plastic hose repairs and the one rubber plug that attaches under the plenum. I cannot remove the rubber plug with my fingers, which tells me the darn thing probably melted over the port and I am going to have to "chisel" it off and replace that entire plastic POS vacuum hose with A good 'ol rubber one.
Getting back to answer your question: After disconnecting this hose, (and putting a screw in it) the car seemed to run fine- but the temp gauge reported running at a hotter temp, going beyond the typical "center position" and in the 90-degree weather it did that regardless.
My fear was running in this method the PCM would advance my timing and lean out the fuel, so I tried to compensate by running premium fuel.
2nd note, I had numerous holes in the pipe and mufflers below the CAT, and yesterday, I replaced the phony "dual exhaust" that was "y'ed off" from A SINGLE pipe below cat (there was never a dual exhaust" and opted for a single muffler and the vehicle is now very quiet and has better performance.
I want to pass smog so I have to fix the EGR system and the components are all new and made by Standard Ignition.
My condition occurs when plugging that hose back into the EGR it hesitates and loses power. It only seems to run OK with that damn thing disconnected. What to do? Thanks again for getting back to me.