Removing unnecessary wires when carb-converting

[dingo84]

Hi, my Cutlass Supreme 81' engine bay is getting a clean-up. And there's a lot of un-used wires, especially the ones from the ECU (the car had a 3.8 v6 injection before, now a sbc 350).
The engine-swap was done by the previous owner.
Is the ECU no longer needed? Does it control anything in the dash instruments or something?
I'm also doing the AC delete.

Here is the ECU wires

This one was the only cable from the ECU that was still connected to something after the engineswap

I noticed the plug the green wire was going into, is further connected to the AC. But on the same connector, another wire is going from there across the engine bay and into the wire loom on the other side. What use could that be for?

I don't think its for any use, but I cannot be 100% sure.

 

[TODoubleD]

i wonder the same thing too. my car has an aftermarket HEI distributor and Edelbrock Carburetor

 

[dingo84]

I found this on ebay, its maybe the answer.
http://www.ebay.com/itm/WELLS-TU-93...l:Cutlass+Supreme&hash=item5ad76e1bd2&vxp=mtr

It looks very similar to the plug, and has the same wirecolor. The tempsensor is located in the heatercore i guess
If anyone know this, please reply

 

[ZZ4CutlaSS]

I completely removed the ECM and Heating and Air conditioning from my 84' cutlass. The rubber plug that goes into the firewall which housed the ECM wire harness now is for my Amp power wire.

 

[CWPottenger]

I ran mine for awhile without any of those wires attached to anything and never noticed any issues. I finally got fed up looking at all the cut wires and installed a Painless wiring harness to clean it up and eliminate any gremlins...