What is most likely cause of RPM fluctuations or “pulses” on the data logger graph? This is in relation to engine RPM. Graph line is smooth until reaching just over 7k rpm all the way up to 9k it has fluctuations as if the timing is jumping around. I have always heard this was a mechanical issue and not an electrical issue. I run a crank trigger so one would think the timing should be stable no matter what rpm range it’s in. Rpm bounces around +/- 100 to 200 pretty rapidly, and can really be...
Engine RPM graph “pulses”
