We installed a Honywell Oil Presseure Sensor ( diliv. from ROTAX) withe the Skyview. (Red pin 15 (12V) und white with Pin 6) in the Setup menue we chose the right type "Honywell Rotax)
We solved the poblem, Honywell has thr cables red white anf black. The black was conected with ground snd this was your mistake! in the manual there are only two cabeles describted ....