Hello everyone, I have Opel Insignia sport tourer 2.0 2010 160hp. When I drive on the highway, my car loses power. More precisely, I drive for a certain time and the car just slows down. If I drive 140km/h it sometimes slows down to even 80km/h and doesn’t allow me to go over that speed. No matter how much I squeeze the throttle or at whatever speed to shift, it doesn’t allow me. So he knows to be not to give me over 120km/h the same case. But first of all, he shows me a warning "Service vehicle soon". Only a few minutes after he gives me a warning, then my car has no power. The car is already serviced. He was connected to the Opcom, there are no faults. Can anyone help me? Thanks.