912ULS. I used to get a narrow green arc on the rpm when the oil temp was below 220 deg. Then I started to get high rpm indications intermittently while in the air when the engine oil temp was around 220 deg. Now I get erratic rpm indications anytime above 4500 rpm no matter what the oil temp is. It is so bad that I have no idea what the rpm is really is. I changed the oil temp transducer to no avail. I am wondering if I may have mistakenly done an overwrite of the EFIS setup file. Any help would be appreciated.
912ULS Erratic RPM indication above 4500 RPM
- Thread starter eswallie
- Start date
That's not going to be anything that a config is going to affect that. That very likely means that the EMS is seeing erratic pulses from the ignition system which need to be solved (usually by adding serial resistance)