Did you check your lambda sensor? (o2) Since, as you said it works fine when cold, but when the engine is warmed up it runs like crap. Obviously when the engine reaches certain temperature, the computer goes off of the lambda sensor for air/fuel mixture

Good luck

__________________
1987 Mercedes Benz 300D Turbo Black/Black

It runs when cold, but does not rev freely, but everything gets worse as it gets warmer. Just did the fuel filter as I found a new one laying in the trunk, no change. Ignition timing check next when I get my hand on a timing light, O2 sensor would be the next step. Found a used injector with an electric plug on it, I guess some cold start injector of some sort. Is between the fuel distributor and the valve cover.
also some air pump located in front of the fuel distributor under the plastic cover for the loom. Don't know if i need those.

Still no power. Was going to bolt in the alternator but the wiring is hiding somewhere. Got to find it to hook the alternator up.