Hopefully this will be my last question and will bring an end to this issue. I apologize for my lack of understanding and probable thick-skulled-ness on this thread.
So I found that the connector to the ECT was loose and damaged. I cut off an EV1 connector from a bit of injector wiring I had laying around. I rewired this to the existing ECT wires and it is a much more secure fit.
I also discovered that the connector to Pin 13 was loose and damaged from improper probing from the front and so a new connector was purchased from Dave Barton's site and was crimped and rewired and has shown to work and fit much better.
I took my multi-meter and a newly obtained section of wire (as i should have done from recommendations from bobxyz and ZVOLV) and began testing wires. Setting the multi-meter to test for continuity. I checked both wires from the ECT connector to their rightful plugs on the LH and EZK ECU's. Both checked out.
On to the grounds. I checked grounds on both ECU's. I disconnected the forward ground wire on the intake and wrapped my test wire around the ring terminal. This is the ground that has been talked about much with the 4-1 splice. Pins 5,19, and 29 on the LH and pin 20 on the EZK ECU's all received a beep from the multi-meter showing continuity from the ring terminal to all four pin connectors. Pin 17 was tested and checked out with the multi-meter grounded at the cigarette lighter. I also pulled the protective shroud off of it and inspected the condition. It is pictured here. I do see a bit of exposed wire right after the main splice but I do not know if this would be a factor. Maybe this could cause problems with engine vibration.
The reason I am posting is because I am again receiving the 1-2-3 code on Pin 2 of the OBD. More interestingly, and what has lead me to believe that this is ground related, is that pin 6 for the EZK is now showing a 2-2-4 code. I have not seen the car show this code since I first posted but it has again returned accompanied by poor cold start performance, random engine shutoff, rich mixture, and very poor "lopey" idle upon initial start.
From what I am gathering here it appears all my wires are fine. This makes me question either the Engine ground strap to the fire wall or my ground connection on the intake.
Again thank you all for the help and apologies if I'm like talking to a brick wall.