Hello, have a little problem: A few weeks ago I would have to find short tension interruptions during acceleration in 5 gears, which took only sporadically and not a second. Now this problem occurs more frequently and the engine control light goes on and is out again after 7-10min. With the problem another has also done, which he at 140 and further, totally rappelt. The Volvo runs through great, runs at 120 super calm. 370 TKM stand on the clock and he is Bj 99. Would be nice if someone could help me further! Thank you in the front yoke