Gentlemen, this turned out to be a good post after all.
Autozen has answered a question I had and that it became obvious after the retest. The tech didn't have the fan in front of the engine running the first time, he had it running the second time.
The car had new sparks, premium gas and it reduced the NOx number by 300. I work at a major oil refinery and can atest that theory is just what is written but the practical application and experience changes evberything.
I'll go back to my 300E.
