Recently deleted the egr on my ibiza 1.9 pd130 blt engine, got the pipe that replaces the egr valve but retains the asv, car starts up fine with no fault lights, however is now having a boost problem that it didnt have before deleting the egr, the turbo doesnt spool up until around 2-2.5k rpms and doesnt boost as hard as it used to, all vacuum lines are connected properly and everything seems to be fine, any ideas?