After some research I wanted to do something good for my MJ2009 Volvo V70 2.4 D Ocean Race 163PS and clean the intake channels a bit. The reason for this was the sporadic bagging of the speed when rolling out and braking before traffic lights at idle speed to approx. 500 rpm-1. Only after complete standstill the speed then increases again to approx. 750 rpm-1. I dismantled the throttle flap and cleaned it with Liqui Moly Diesel system cleaner. I have to say that I have such an aggressive Without advertising, I was very surprised by the effect. So I was able to bring the throttle flap back to high gloss in the developed condition and reassemble it with the old metal seal. In the same train I dismantled the LMM and cleaned it with a brake cleaner, as far as I got there despite the lattice. I cleaned the AGR valve in the built-in condition with cleaner and toothbrush as far as possible. I was able to fix this with a self-made clamp (similar to a threaded clamp for sheet metal or flat plastics) in a clean and freely movable manner. I thought that this error should not occur with the engine any more, as it was optimized? Then the car was driven to operating temperature and half LiquiMoly stuff was sprayed into the air system after the LMM at increased speed. Together with the fuelling of the Fzg. with Diesel Ultimate, I hardly recognize the Volvo. It gains increasing power, especially on the track beyond the 120km/h. So far – so good. Now to the problem: If I want to accelerate from the slightly underrun partial load for a overtaking process or e.g. after the end of a 70km/h limit, the engine unfolds at exactly 80km/h, whether in 5th or 6th gear at about 1500 rpm-1 after a short turbo memory customer, for me until It’s not possible to get out of the car. It’s not possible to get out of the car. It’s not possible to get out of the car. It’s not possible to get out of the car. It’s not possible to get out of the car. It’s impossible to get out of the car. It’s impossible to get out of the car. It’s impossible to get out of the car. It’s impossible to get out of the car. It’s impossible to get out of the car. It’s impossible to get out of the car. When recording with a cheap OBDII device and a smartphone app, it is noticeable that the airflow increases with increasing acceleration and then suddenly falls back to a constant value of 40 (I don’t know the unit now) at the moment of the “emergency run” until the emergency run is out again. Another clean-up after about 1 week with the other half of the LM cleaner took place outside of A little more power no change of the error. Apparently the stuff seems to solve something really, because during the process the car then reported that the DPF was full. A half-hour cleaning drive at higher speeds allowed the error to be extinguished again. Also the reset of the ECUs, AGR system etc. by nightly disconnection of the battery brought no change. For me this makes no sense. Before the cleaning the Fahler has not been there. Now the engine seems to be in a I would now have thought that a sensor would deliver false values or the turbo’s adjustment mechanism would depend on what happened with VW from time to time. I can imagine that in a certain speed range, the blades in the turbo would then be so “unfavorable” in the exhaust current angle that too high a charge pressure would be set up here. Is it a charging pressure regulator, right?