Hy, where can I measure this? Where exactly is the petrol pressure regulator and how can I test it, if the OK is ? Have already done so much (even in a Tunisian way) but I can’t get away from it 1000%, especially from 230kmh it runs so thinly, even though software is already running after what, large nozzles inside etc… At the stand gas it also runs a bit unevenly, but only there. I think that the petrol pressure does not fit, therefore I think to renew the pump for safety, was also very good at 380km. Where is this, also screwed from the top into the tank, as with most vehicles, as with most vehicles? Do you get there via the trunk / combi part pure (in net not found any instructions)? Petrol filters have been regularly renewed (only 10 months ago the last one). I think that this is a problem, maybe it is only the pressure regulator. Do you think here have to take one more of the tuner’s questions before the tuner?