Not sure if this is an electrical or sensor problem. When the engine goes above 3600 rpm on a run the rev counter occasional jumps anywhere between 200-1000 revs. If you don't slow down (below 3500) when it happens it will contiune to fluctuate until both the rev counter and Speedo peak and then drop to zero the oil light comes on and then it returns back to normal. Does anybody have an idea? Any help or ideas much appreciated Mat
