MSefi.com read only forum (Jan.15,2018)

Checked the log and could se that the pw sometimes gose down to zero for no reason:S
an that seams to get wors when the engine gets hot.

I think it may have something to do with my past problems with rpm spikes

I was right:)
Started the bike yesterday and it idled more stable and all zero pw ...

Try wiring the OPTOIN- wire to the HEI module's output, and the OPTION+ wire to VREF. You'll need to swap the Ignition Input Capture setting to make this work but it often gives a stronger signal.

Thanks, it wroked :)

You mean that the signal gets inverted and if trigged on going high befor i ...

Buildning µS on a KTM 1cyl 609cc engine.
to start with I tryed to use the original VR sensor but got alot of big rpm spikes, then installed a 50k resistor and got rpm and the engine started but idles very bad. Checked the log and could se that the pw sometimes gose down to zero for no reason:S
an ...