Is the Left CHT indicated on the Dynon for the left side of the engine from the pilots view?
When I wired my D-180 using the labeled wires, I think that I have the right side of the engine from the pilots view, and vise-versa for the right CHT.
Plane reference is if you are sitting in the seat looking out forward. The plane's left is your left. When you wire the #2 Cyl. CHT that should be left on the instrument.