Maybe TCS or problem with electrical throttle body. The gas pedal was time by time hard (went in emergency...) But engine would not go well anyway.. so maybe bad SDI or something other. I had it at one guy who repaired SAAB for a long time, he tried lot of things, but one day he told me that he dont know where is exactly problem and he have not time to find it, so he towed saab to my garden and the car died there :( but some spares has been used to brothe's 900T-I :)
Yes, SAABs are quite rare cars here... but what is nice is, that we are waving to each other with other SAAB drivers, when we meet on the road.. :) never seen this at other brands...