Hello together, my name is Chris and I have been driving a 94er 2,3 EcoTurbo (170hp) for about 2 years. Today I need your help. It’s my first Saab and my first turbo-vehicle (comes from the chrome-mercedes bearing) and I’m really fucked up, because there’s a lot different about the Swedes! 😉 Otherwise I really became a Saab fan in a very short time. But now to my problem: A few months ago the car started to jerk at exactly 3700 rpm. I didn’t remember so often, because I used to read about “Fuel-cut / too much charging pressure etc.”. I wanted to take care of this on occasion, but at some point the Saab ran again over 3700 and more! Since the day before yesterday I have the same phenomenon at 2000 rpm! Since this speed is reached fast, I thought first I had ignition problems and had suspected the ignition box (but my predecessor had changed some time ago). I have changed today I usually went under this speed. search to stay under 2000 and have always switched at 1900….and see, the car is driving quite normal and jerk-free. But this is not a condition, of course, just wanted to locate the source of the error here. What can I do now to solve this problem. A well-known (Kfz-Master) also wants to help me, but is not a proven Saab expert. I hope for targeted answers and look forward to your help. You have a nice evening (and don’t wait too long with the answers) , can’t always gurgle with my stick-ach in everyday traffic! ;-)) Greetings from Düsseldorf Chris