I have here a fine example of a butchered motor swap.

After the offending tech installed the motor it faied to run...
The Fix: New Crank Senesor, repair to harness for crank sensor.

Now this beast has been out for about 2 months and it returned with no injector pulse.

I have limited data on Mercedes as I am using Mitchell Which has been of very little help.

I have spark, I have fuel pressure, I have compression, I have power to the injectors. What I do not have is the ground pulse to fire the injectors.

The cam sensor has been replaced, the ECM has been swapped, all ground and power wires I can trace via Michell has been done and are O.K.

What am I missing here???