Thanks for the suggestions guys.  The airplane is brand new.. Its an Ultra Bandit test flown last weekend.  Olympus HP for power.  All the fuel fittings are the extra large ones from JMP and the bubble trap is also a JMP accumulator.  I am using extra large ID tygon across the entire system.  I went over board on the vent and made it out of an 8mm ID copper tube shaped like a pitot for that extra pressure in the tanks.  I have checked and double checked and have found no leaks in the system anywhere.  My main tanks have no baffles and I am running 6mm anti static festo tubing with the large JMP clunk.  Its the black tube we get at dreamworks.  Everything is wire tightened.  Its a 20k bird and I went overboard in making everything close to perfect... but i guess I didnt do it well enough.  Perhaps I will look at my purging technique for the accu.  I simply fuelled the plane and flew it.  Didnt follow any purging technique.  I squeeze the filler line before removing the fueler so no air goes into the accumulator.  Other than that, I am not able to see any possibility of air going in.  Now that I have given specific description of the products used, maybe the advice will be more specific?<div>
</div><div>According to Bennie at AMT, the pump has to go dry for 4 seconds before the ECU will shut it down with a low rpm error... I havent downloaded the engine logs yet, but when I refueled the system, I found the Accu was near empty... so its believable that the pump got dry for 4 sec or more. Needless to say this airplane wont fly until I know for sure what happened and that it does not repeat again.  </div><div>
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