To start with the easy and obvious, you can give the throttle body and idle control valve a thorough cleaning first. Then disconnect the battery to reset the dme. Next up will be durametric reading of codes and misfires, then check the spark plugs and coils.

 

Well, i have it all cleaned up and ready to go to the mechanic shop. His diagnoses is the AOS. we put it on the durametric, still didn't say anything . I've cleaned throttle body and done plugs. Oh well, she's headed to the shop. I'm happy with the money i have in it! Also the car is a complete leather interior and LSD car. From what I've seen option 220,222,224 is fairly rare?

 

Looks very clean!

 

Forrest,
If the car has been idle for many months, the fuel may have gelled/deteriorated. It is a pain but you need to flush that out. Not just the tank and filter. You particularly need to flush out the fuel pressure regulator and fuel rail. I hope you have somewhere warm,dry,well ventilated to do such work in winter.
BTW - the gelled fuel is not very combustible. It will plug up the fuel pressure regulator. Tedious work.Can't you tell I had to do it recently ?