Welcome, Guest. Please Login or Register
Dynon Avionics, Inc.
Welcome to the Dynon Avionics forum!

Page Index Toggle Pages: 1
Send Topic Print
D180 EGT reading -99F (Read 199 times)
Apr 9th, 2018 at 10:33pm

steve hirschi   Offline
New Member
I love flying!

Posts: 2
Just changed EGT probe on Rotax 914.  EGT readout shows ambient temp before engine start and then reads -99 shortly after engine start.  Did I just get the leads reversed into the D180 or do I have other problems?
IP Logged
Reply #1 - Apr 10th, 2018 at 5:06am

jakej   Offline

Gender: male
Posts: 1549
That’s usually caused by a disconnect in the probe wires ( not a probe failure in your case) or a bad terminal connection.
IP Logged
Reply #2 - Apr 16th, 2018 at 6:26am

RayInGA   Offline
Senior Member
I love aviation!
Richmond Hill, GA

Gender: male
Posts: 445
Do a search for "-99" and you'll find some related threads. Here is one link.


Ray Eaker
RV-7A flying since 27 Jan 2017
Dual Skyview 1000T with all available Dynon VFR goodies
IP Logged
Page Index Toggle Pages: 1
Send Topic Print