Rebuilt wiring harness, new vacuum hoses, Now it runs like crap Options

[MrKona]

The title sums is up. I recently rebuilt the FI harness on my '74 1.8 L-jet. I also replaced most of the vacuum lines.

Now the car idles low and rough. Seems to run rich. Idles rough when cold, and worse as it warms up. Wants to stall unless I give it some gas.

I just reinstalled the engine this past weekend and started it up. After I heard it run, I calmly turned off the ignition and told myself that I would take a a few days away from it, and then tackle it when I was ready...

I'm getting ready.

Obviously, I need to check the vacuum lines for proper routing and leaks.
I'm nervous that I may have a loose connection in the harness that I built, but I really was pretty careful with my connections and routing.

These are the two areas I will concentrate on, since they are what was changed since the car idled smoothly.

I did notice one thing when I had the engine tin off, and that was broken insulation on the head temp sensor wire. I was cheap, and instead of buying a new one, I simply wrapped some tape around the exposed wire. Perhaps it wouldn't hurt to try out a new sensor at some point? I had the engine running today and pulled the CHT sensor lead off the FI harness and the car died immediately. On a related note, I read on a previous thread about an in-line resistor with the CHT sensor and harness. I don't have this. Is this something from the factory, or just an after market "fix" for another problem?

As I tackle this problem, can anyone recommended something else I should specifically look at, or a specific fuel injection component? (meaning, the wiring leading to it).

Thanks,
Bryan