No, te ecu don't have any specific value flashed in to the memory. It calibrates the value at each start. You can have your engine idling at pump power of 100, you shutdown and tweak the installation or change to a bigger pump, and in next startup you will see your engine running at idle at, perhaps, 50 or 150.

The problem is only of the pump. If the software corrects faster, usually this ends in under rpm, and engine stopped, not good for a safe fly.

Important debugging info if your engine suffer this problem:

1) At startup, leave the engine to start on its own and wait several seconds after it display "running" before increasing the throttle to leave time to stabilize.
2) Once at idle, anotate the value of Pump power ( PW=xx)
3) Do not do a full power run with the header tank connected.
4) If after flight the "high idle" symptom appear, check again the value of Pump power ( PW=xx)

- If higher than before: This means that the engine RPM have dropped below idle during flight, and the ecu reacted incresing the minimum flow to keep the engine alive. Usually symptom of a too fast deceleration.
- If same than at startup: This means that with same pump power the engine is receiving more fuel. Comon causes are a sticky pump or tanks in series that make the suction harder when all full. On a particular costumer the problem was a "automatic" filling valve which failed under suction.

In any case, giving us the values of pump power before and after the problem can give us vital info to debug your problem.


Gaspar