If anyone could help determine why my injector pw randomly spikes to 0, i'd be most appreciative.. see graph here:



My RPM is also spiking to high numbers, and usually injector spikes line up with these, but not in all cases... any thoughts?

Heres a graph showing where the rpm spikes match injector spikes....

 

Can you show more with your spark angle or just post the xls file? It's hard to say but you may have noise in your ignition signal.. I know my injector pw drops to 0% but only when I'm off of the trottle or between gears. Never while I'm on the throttle, but again this may have something to do with noise in your ignition signal..

 

I forgot to mention I am only using Mega for Fuel. Spark is run from stock S2 Elec Dizzy. The mega gets its ignition signal from negative side of the trailing coil. I've also tried leading coil and we get the same noise.

I've attached a small section out of the 8mb datalog showing noise.