EGT not Stable

[Roger_Lee]

Hi Dynon,

Lately I connected my D120 and D100 together. Everything seems to be working fine except, I have just noticed that the EGT bounce up and down about 100F and my oil temp seems to bounce up and down some now also where both of these used to be fairly stable. If the EGT's did change it was more slowly where now it races up and down 100F. The CHT and oil pressure are still stable. Do you have any idea why this is happening or a fix for it?

Thanks

 

[dynonsupport]

All of those sensors rely on the ground path back through the engine, so perhaps make sure nothing has changed in the grounding.

Also, perhaps there's something up with the connection between the EFIS and EMS (it sounds like that has changed). You might try disconnecting them as a test to see if there's something going on there.