A cylinder often misfires

[mkuklis_ECUMASTER]

What is the maximum speed allowed for the EMU pro 8

You have misfires at the end of the log. Trigger looks good at that point. I think the spark plugs get fouled. You are running very rich, and the injector’s pulse width is very chaotic. There are jumps of pulse width from 8.8 ms to 9.8 ms. That is 13% of fuel change at steady state conditions. That should not be happening. Two variables contribute to this. Manifold pressure and volumetric efficiency. Since this is a two-cylinder engine, the pulses in the intake are clearly visible. In t…