you win this round of "guess that cause."
I swapped MAFS's with a '94 e320 and the problem instantly disappeared.
I noticed that in '94 MB changed the orientation of the MAFS such that it is 180 degrees off from the orientation in '93.
Why? Because the MAFS as designed in '93 was very close to the exhaust and the high heat would have an impact on the longevity of the delicate circutry of the MAFS.
So I changed the orientation of mine even though it's already toast.
Now I just need to get Bosch to give me a new one!
Thanks for all of the help everyone!