(– by moejeep #5369 –)
I think is has to be something in wide open throttle mode causing the problem…
It is 100% not in the warm-up mode, but it could be:
Acceleration mode, Cruse mode, or wide open throttle mode.
This would explain the happening sometimes… I can recreating by driving hard and usually happens on a hill.
As soon a I swap back to original pump I will run full gas tank test… to make sure the pump is not sucking air.
I currently have around a 1/2 tank.