Since I currently have the engine out of my 85 TPI, I want to take the chance to clean it out. Not just clean it, but get rid of everything that my car doesn't need to drive.

All the a/c is already gone.
Same with A.I.R.

Is the EGR valve on the intake needed? Can I plug it?

I'm also trying to keep the wires to a bare minimum. I'm not 100% sure on what sensors absolutely need to be hooked up but this is what I can think of.
-knock
-O2
-MAF
-Oil pressure
-Coolant temp

And now I'm drawing a blank. I'm trying to plan this all out on how the bay will look when its done. Maybe someone can tell me what circuits are needed. I have the haynes here and all the schematics.

 

You've already removed most of the stuff you can. Only other hoses you can take off are for the charcoal canister (evaportative emissions system).

EGR system is necessary. The ECM has a temp sensor in the EGR system that it references to see if the valve is actually opening when it commands it to open (applies to any MAF-equipped TPI engine year). The only "right" way to defeat the EGR system is to turn it off in the chip programming. If you do that THEN you can remove the physical parts from under the hood.

 

Okay, well then what does the charcoal canister and hoses look like?
Is the canister in the fender?

 

Yes. See the thread by Rocco titled Why is this disconnected

There are some photos & a lil explanation what the canister is for.

 

Okay cool, now I found the vacuum line diagram for my 85 tpi, its attached.

Where should I plug this to remove the canister and as many lines as possible?

I'm thinking plug the line from the fuel tank, and then if I left the EGR solenoid there should I plug the end thats supposed to go to the canister, or should I leave it open, OR do I even need the solenoid.

Sorry if this is redundant/ or has been asked a million times, I just can't seem to figure this out.