Having a bit of a hard time finding any information on this error. 2007 Audi A3 2.0TDI Quattro 170 Basically the car has been running sluggish for a few weeks, taking longer to turn over in the morning and a bit jittery/shaking at low revs until the car warms up. Then yesterday after being out in it during the day with no issues i went to get in last night and the car wouldn't start, had the engine light and glow plugs light on the dash followed by low oil pressure warning in the DIS, though i reckon this was because i kept trying to turn it over... to me it seemed more like a battery issue as it just felt like it didn't have enough juice. Anyway removed the battery and charged it over night and it started grand the next morning. When i ran a VCDS scan it reported back 000801 - Engine Speed Sensor (G28) fault. I've looked here and online and can't find any definitive answers regarding this error. I rang my local Audi dealer and gave them the part number and they said it wasn't showing anything in their stock and that it was for a VW Passat. Anyone able to shed any light?