Just to add a few tidbits:
Fuel pressure measured at lower chamber: 5.3 to 5.2 Bar
Voltage at X11 pins2 & 3: 7.5V DC Signal at 50% duty cycle at idle
Current at EHA: Within norms as shown in the MB tech manual.
O2 voltage fluctuate when war: nominal!
Set the Air Flow potentiometer at around 0.7V when installed and at idle.

Idle reading:
normally at 800 then drops to 600 or a little less when R or D engaged.
Vacuum reading:
At the intake with a MytiVac = 16
The instrument panel's vacuum reading for the fuel economy goes to 1/4 when I engage into gear.