Doing some research for a friend, below is what he is telling me...

His truck is poping fuel codes, cannot view code with qaudzilla or PPE Programmers and doesnt pop on the Dash. Full scan with efi shows the code, low rail preasure at part throttle, little over 1,000 RPM it starts to have low rail preassure.

He replaced ecu 6 months ago to try and fix the problem with no luck. He has spent countless time and money and can't find the problem.

No matter what programmer is in it, it does the same thing.

Someone had mentioned to him that if he "puts the new EFI software in his truck" that it will most likly fix the problem... I am not 100% sure what the kid was talking about so if you can elaborate for me that would be great..

He has a PPE fuel pump so it is getting more than enough fuel and he runs his Quadzilla on a lower level as well...