Hello together – Unfortunately I have the problem that my lion 407 HDI 2.0 BJ end 2006 with currently 45 tkm only very reluctantly hangs on the gas. The vehicle always takes only one to two seconds after a stronger accelerator pressure correctly thrust. The same happens also when the connection speed is not over 3,000 rpm. Then simply no drive happens but after the gear change only the speed is kept (mountain up particularly bad up to a low speed reduction) in order to accelerate again after a two seconds similar to the speed control. I always call this “rubmiring effect” :-)) Very bad from the 5th into the 6th gear if man is suddenly stuck next to the one to be overtaken and nothing happens until the drive starts again. Easy gas-giving with subsequent full gas sparks quite normal. Only spontaneous gas-giving does not give !! The air mass meter has already been changed and the throttle valve however no remedy. It should also be according to Techikcenter Saarbrücken everything in order… So I let a chip tuning (optimization) do which unfortunately except more performance also did not help (except more performance of course). Maybe you already had the same error or an idea since no workshop really finds a mistake or has a solution Thank you already for your answers