Hi. I had a rotax 912 uls engine. I installed the injector and installed the Kavlico 4055 50 psi sensor. ( I only changed the kavlico 4055 15g sensor to a 50g sensor. the wiring remains the same ) . I updated the software on my G3X touch ( version 6.30). I have problems with the fuel pressure sensor readings ( 3 bar - when the engine is off. 2.4 - 2.8-when the engine is on, at different speeds ). In the manual and on the forum , I read that I need to install a differential uma sensor or Alternatively, these installations may use a single-input gauge pressure sensor and change the configuration of the "Pressure Reference" item to "Manifold Pressure". But when I turned on my GDU in configuration mode, I didn't find the "Pressure Reference" button in the "display options" section . Please help to understand what I did wrong.
Sorry for my bad English. Yours, Nikolai.
A quick look at your GX3 Manual ... http://static.garmin.com/pumac/190-01115-01_AG.pdf
Finds page 2-5 shows you should have a GEA24 (EIS) installed and configured for FADEC CAN Bus Mode.
The Fuel Pressure Gauge is external to the 912is engine.
All other 912is sensors including the MAP are all on the CAN Bus.
The Fuel Pressure Reference is configured in the GEA24 (Page 35-149), Not in the GX3.
The 912is may look a lot like the 912ULS, but that is where the similarities stop.
This is really a GARMIN question and not a ROTAX question.
Bill Hertzel Rotax 912is North Ridgeville, OH, USA Clicking the "Thank You" is Always Appreciated by Everyone.
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