is the ICV a small cylindrical object with a connector and vac hose going into it located under the airbox?

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1983 240D 4spd
1984 190E 5spd
1987 300D (sitting for a year or two)
1989 Toyota Camry 5spd (current DD)

sounds like it

Still not fixed!

Took of the ICV, cleaned it with alcohol and reinstalled it as it was pretty dirty inside. Also used some carb cleaner and cleaned up the throttle body. Everything seems to close as it should. Also took the EHA off, and I noticed someone as removed and reinstalled the brass screw that is visible once it is removed from the motor. If someone had adjusted the little 2mm hex, could that possible cause my problem?

Also noticed that the brass bearing is no longer in the lambda tower, so someone has obviously fooled around with the air/fuel mixture. After this discovery I went and bought a sears 82139 multimeter and tested the duty cycle. My car is an 84 190e 2.3 so I dont think I need to put it in diagnostic mode. The duty cycle reading would fluctuate from 0.0% to 18.5%-18.8% every few seconds. It did this from when it started to the time I turned it off after it reached 100 degrees. Is this fluctuation normal or is this an indicator that there is a faulty component? Duty cycle is suppose to be 45-50%, so the air/fuel may need to be adjusted but I just don't know if I can trust that duty cycle measure jumping around like that.

Any ideas?

Also grabbed a unadjusted EHA off a 87 2.3, It know they made some changes to the 2.3L after 87, but the part looks identical. Anyone know if this will work on an 84? Cant get on to EPCnet to check part number because of this damn MacBook.

__________________
1983 240D 4spd
1984 190E 5spd
1987 300D (sitting for a year or two)
1989 Toyota Camry 5spd (current DD)

Try this link
http://www.peachparts.com/shopforum/showthread.php?t=245932&highlight=190e+stalling