Did read it. And just read it again. Cannot, for the life of me, see any reference to you having changed the fuel maps, nor the fact that you had a broken CAS-aligning key. Nor that it used to almost run on these injectors.
It's really quite easy to align the CAS on a broken key. And it will not do a thing if it is even 1 tooth out.
How good is the battery? It might be that you are dropping too much voltage in attempting to turn the engine over, and the ECU can't cope. Try jumping off another car.