dual failure of MAP and oil pressure indication

[PH-LRV]

After my latest flight, my MAP and oil presure indication failed simultaneously. I switched the power off and started again. After restart everything looked good and all indications were up. Today, I started the system again and MAP and oil pressure indications fail. Even after a restart, there was no improvement or automatic self repair.
Any ideas?
Stephan
PH-LRV
180 hrs on this RV8

 

[swatson999]

Well, we can probably rule out the sensors themselves, so that leaves wiring and EMS module. Let's start with wiring...do you have a schematic?

 

[John Lucas]

My guess would be they are bundled together at some point and the bundle got loose or was melted due to poor routing near the engine or exhaust.

 

[jakej]

As S Watson said - it’ll be the 5volt wire or ground - that’s the only common thing to both & it’s more localised as the fuel pressure is working ? and it’s using the same 5 volt input.

 

[PH-LRV]

wiring all checked, 5V available where it should be. Remains the EMS 220. I'll order a new one to replace it and then we will see. The repair is about €495,- here in Germany. The new one is aboutt €900,-.When the new 220 will solve the problem, then I'll take care of the old one and open it.