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> When I pull my plugs, the electrodes on the ones on cylinders 1 and > 3 are brown (which is normal, I assume) and the area directly > adjacent to the thread, facing the combustion chamber is fluffy > black (not normal, I assume). > > The plugs on cylinders 2 and 4 are totally carbon fouled, fluffy > black on every part of the plug exposed to the combustion chamber. > > Does the CU or some other component send more gas to cylinders 2 and > 4 for some reason? > >> Keith Park wrote: >> >> CLean your trigger points.` >> >> Keith I talked to a local VW mechanic today. He said one side of the trigger points control cylinders 1 and 3 and the other side controls 2 and 4. Is this right? Is it possible the 2 and 4 side on the trigger points are sending signals that cause the injectors to fire out of sequence and thus flood the cylinder? How do you check this on the distributor? Steve B.