Hello everyone, so I find this forum really great, I also read various posts but unfortunately still found no answer to my problem. So I am 1 week Saabneuling and must say that it is a pleasure to move this vehicle, if not this “check engine” light would always go on and off. In the Saabwerkstatt it was told to me it would be the AGR valve, because the car was standing for a while. But I have cleaned this already 2 times and see w The “Check Engine” lamp always goes on and off, always at different intervals, whether the engine is warm or cold, sometimes for 10 minutes then again for 30 minutes. The performance is then also correspondingly bad, does not pull at all. I also replaced the vacuum hoses, what can it be ? HELP ! Data from the car : Saab 93, BJ 2000, 116000km, 2.2TID, YS3DF35, 116PS M.f.G.