Which engine? If it's the Turbo II, it's a conventional Chrysler turbo engine. All kinds of things could make it run rich: O2 sensor, excess fuel pressure, bad coolant temp sensor, etc. I think the car should support the normal key dance error codes. I don't see how a bad turbo would cause black smoke (as Bob mentioned).
There was also a 2.2 with a Maserati head - very expensive if it ever needs head work.
There was also a 2.2 with a Maserati head - very expensive if it ever needs head work.
