I have been following your postings. Interesting. Have you cleaned the air sensor plate? Is it dirty at all? Someone with a 190 had posted a similar complaint and was amazed after cleaning it.
I had to bleed the injector lines at the fuel distributor, which I had never ever done on any car before to get the 190e to run right.
I was amazed at the amount of crap that came out. Right after that, oh and the double-dose of Techron, it started running extremely well.
I never had thought about anything clogging at that end. You might want to give that a try. Be careful, raw fuel and a running engine.
Keep us posted,
'03 E320 Wagon-Sold
'95 E320 Wagon-Went to Ex
'93 190E 2.6-Wrecked
'91 300E-Went to Ex
'65 911 Coupe (#302580)