Bob,
I have been following this since it's inception because I own two M103's.
I'm not an expert but I am learning.
The reading at #2 and #3 should fluctuate from 6-7v Dc
11.6v DC is nearly dead battery, put it on a charger.
What spark plugs are you running?
Do you have continuity at the micro switch, and to test TPS, continuity at terminal #2 and ground on the 4 pole above the coaxial on the EZL?
Check the wiring at the TPS.
Were the injectors replaced with the seals, if not how old are they?
What vacuum is present at a manifold nipple?
I just went through this on my 92, wanted to roll it outside and shoot it.
Fixed it, TPS misaligned.
I feel your pain.
Don't give up

Paul