the "Saab Specialist" down the street is stumped after two weeks. i throw my troubles to you, the alt.autos.saab wolves.
this is 1993 C900S automatic with just under 140,000 miles.
Idle is rough. Struggles uphill and under load (meaning more than just me in the car) in low gears.
Never stalls, no "Check Engine" light, RPMs stay right around 1,000 at idle and screams on the interstate, no problems.