I recently bought a 93 Eco diesel Passat, and the first thing I noticed when I drove it is that the accelerator pedal needs to be pushed a fair way down before the engine speed increases. I checked the cable adjustment, and the rack lever starts to move as soon as the pedal is stepped on. I can move the rack lever almost half of it's travel, and the engine speed hardly increases. The PO said he'd recently replaced the "throttle shaft seal" (for want of a better term), and I wondered whether he'd reinstalled the rack lever in the wrong place? The idle speed is correct though, and I haven't yet checked the max speed. Any ideas?