My plane just started doing this last week on startup the fuel pressure gauge would fluctuate on start up after 5-15 minutes in it would stabilize between 4-5 in flight. only when motor not started electrics fuel pump on it would hold steady. I do have a edm-700 fuel flow and it’s still right on there is no fuel leaks on the floor or inside cowling. I took a video on start up. Is it fuel pump?

• This topic was modified 7 years, 7 months ago by John.