Hi, first time post. This site is invaluable!! Within the past year i have purchased my first 2 MB. I live in western pa, i found a 1971 220d in naples fla which is my 16 yr old daughters first car and a 1987 300d in las vegas nv. so i am trying to get up to speed. the 300d had all the normal issues which i was able to fix most myself thanks to you guys and girls.

I have a stalling issue with the 300d . there are great posts that i have found one being the adj on the ip. with the elr set at factory 4/5 and the car idling i take the plug off the actuator and the car completely dies. in the posts it says there should be a small drop in rpms. does this mean it's still not adj correctly or is the acuator bad? i can move the elr and the rpms do change. i'm terrible with checking ohms and amps so i hope i can keep it from going to the garage for service. stumped. also the guy i bought it off of had 3 MB service manuals which i now have, w124 chassis and body 1 and 2 and the diesel engine 602 and 603.