Hello, can someone help me ? Problem: engine stutters recently; diesel pump replaced without success; engine runs through normally when I step on the clutch during stuttering. Engine starts normal and runs normal also in the stationary gas; the stutter is therefore irregularly i.e. rather in the lower or middle touring range not at acceleration or gas giving; it also does not occur constantly but in such a way that I can not properly classify or describe it. n in very good condition (as to be expected) so that obvious other defects (cables, hoses, oil etc.) are not to be observed. Does anyone know any advice?