Passat 2.0, 1991.,2E engine code, bad acceleration.

[vladavw]

I have got passat 2.0 engine ( 85kw, "2E"), 1991. For a longer time I have problem because it doesn't go so well, like it has not enough power. It goes like it has for example 40kw. New fuel pump, new fuel pressure regulator, new luftmengen messer, new fuel injection valves ( all four ), new steuergerate, new zund-trafo,new ignition cables.Engine starts well.Normal kraftstoff-verbrauch.Fuel pressure ok. New lambda sensor. Pease, help me. Thans in advance!