D180 fuel flow

[wagflyer]

My read-outs for fuel flow and % power have suddenly gone haywire - both readings are erroneous at extremely low values. e.g. when should read about 7 gph it may show 2 or less ans % power when leaned shows values such as 30% or less - way out.
Seems this change might be coincident with having had the EMS in LEAN mode for a flight .Since changed back to normal mode.
Any clues re possible reset or where to look for problem & fix?

 

[dynonsupport]

% power comes from fuel flow, so the fuel flow is the root issue.

The best place to start with these issues is always the fuel flow sender. Check all your wiring to and from, and make sure there is no debris in the system blocking the rotor.