Scenic III TCE 130 no one can find anything, but he’s juking and jerking

Our Scenic III has now been 10 times in the workshop in 4 months, everything is well read out, but it continues to run restlessly, consumes between 1 and 2 liters too much gasoline, and pushes in every gear when you take away gas. This morning I then specifically slowed down to test, and what the Renault workshop also confirms, it simply speeds up, and turns up again when you get into the 1000 revolutions range… he just does not lower the speed and I don’t know if this is an indicator for the motor electronics, but we still have 2 months factory warranty, and I can’t handle it with Renault. Since this is not predictable and also occurs in a crossroads where pedestrians walk around, this is not only an uncertainty, but also a danger. We bought at 9,000 km, as a 7 star guarantee with the 96 points service, but we don’t notice anything about it. It’s a 1.2 Lite. r Petrol with 132 hp. Has anyone any idea how to come up with the question of “uncontrolled control” of motor electronics.