Hi

Vehicle came to us after being to other workshops in area with a misfire under load it has had the following fitted by the other workshops, spark plugs, coil pack(bosch) when we put a pressure gauge in line we find 50 bar at idle but increase rpm to 3000

Fuel pressure drops and at 4000 it drops to 1.5-2.5 bar if we check output of pump with inline valve shut
it will reach 130-140 bar so believe pump to be alright checked all wiring connections and carried
wiggle test also looking at long term fuel trim of
plus 30 assuming weak mixture also injection duration get longer and longer when miss behaving also weak mixture does any one know of ecu faults on these direct injections