Thanks for the info, xp!
Just a follow up question: I guess a exhaust analyze will reveal the wrong mixture setting BUT does the lambda sensor(O2-sensor in exhaust pipe) need to be unplugged when setting it?
As far as my knowledge goes if the lambda sensor still is plugged in it will try to correct mixture to lambda=1,000. So if you turn adjuster to much (or leans it out) u won't see it on the exhaust analyze because the system will try to correct it to 1,000, right?
Is it possible to do the adjustment by reading out duty cycle at pin 3 in diagnosis socket. And when duty cycle is 50% it's all set up, right?
I'm asking because last year when I had this done at a work shop they did use a exhaust analyzer and didn't unplug lamda sensor.
'87 MBenz 190E 2,3 8vlv