I have a Rotax 912 with a Dynon Skyview. RPM is OK until the top end where it stops increasing at 4800. 1 wire from Rotax 912 ULS trigger coil goes to ground. The other wire is connected to the EMS white/green wire with no resistor in line. PULS/REV is set to 1.00. Engine type is set to Rotax 912. Tried the white/blue wire and reconfigured the Skyview = no difference. Reinstalled latest software 3.3.2 AND the sensor update from May 2012. No help. Dynon says " we've never heard of this."