Originally Posted by
IO540
If you keep half an eye on the systems, you should spot that.
Some notes
here and
here 
You do have a gift for stating the obvious
As for your assertion that you can't have a intermittent fuel transducer......well all I can say is that is exactly what I saw. It was right on on some flights and 10 to 25 % off on others with no wild fluctuations of fuel flow or gallons remaining. A replacement fuel totalizer for stupid dollars instantly and permanently fixed the problem. The other failure was a wiring issue and it was as you say pretty obvious. I guess the moral of the story is when dealing with GA systems "never say it can never happen"
Thanks for posting your notes on fuel totalizer systems, I learned some stuff I did not know about the unit
