Hello Aldo,

Provided that you have no air in your system and the ECU battery is at 10.3 volts or higher with a load on it, the issue may be either a dirty fuel filter, or UAT (if you have one) or the fuel pump outlet pressure.

Before taking off, confirm that you are able to acheive the BLINKING Green light on the control panel at high throttle which indicates that your engine is meeting the performance expected by the ECU which indicates that you have acheived full RPM and power.

Brg.