Hello, we have been having trouble with a frontera for some time, because it constantly switches into the emergency run program. On normal city and cross-country journeys this happens sporadically without noticeable power drop. During acceleration, the control lights disappear again. On motorway rides from 110 – 120km/h, with significant power drop into the emergency run program and remain in it until the engine is switched off and restarted. This type of emergency run program with power drop The overall performance of the moto has fallen sharply – whether with or without emergency running program. In order to be able to drive “normally”, you have to drive it in the upper speed range so that you get off the spot. There is also the impression that the turbocharger is not in use. On the first check, the Opel workshop said that it would be on the air mass meter. This was replaced. The car became a little more splashy again, but reached But not the usual/old performance. A new check showed the “critical system error 1 and 2” on the diagnostic device. The mechanic said that the car had to be kept for an exact check and tested with electrician/mechanic and diagnostic device, which is, however, chargeable. Has someone already had the same experience and/or can someone say what it might be about? Thank you in advance.