update. i was out tinkering and found the computer is getting voltage and the overload protection relay is functional. With the computer unplugged, the car will start, but the idle is high and fixed, but when plugged in, it idles well. With the EHA unplugged, it idles up for a moment, but is compensated for by the idle control motor. As a side note, while diagnosing, i found the alternator is producing near 15 volts at times. I figure i'd better start looking for a good used computer and a new voltage regulator! anybody have a 0% duty cycle before?

__________________
Patrick Frye

"Yeah, I'm crazy!!"

1986 300sdl
1982 300td

Gone but not forgotten:

76 240d
80 300td
81 240d - my first mercedes
81 300d
81 300sd
82 300td
82 300sd
83 300td
89 300sel