lose of power
 

truck is cutting out and from cold rund ok no power but the warmer it get the slower it goes clear down to 20mph seems to be lack of fuel. has a fass ddrp lift pump 2 years old and injector pump .any ideas and were can i get a fuel tank module.

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sorry for the misspellings guys that would be loss of power

how much fuel pressure you have when its doing this?

What codes are you throwing? any? I know airdog sets their pumps to 15psi, not sure about fass, but with those pumps it is unlikely you are having fueling issue, but knowing your pressure is a key part of the equation.

"cutting out" immediatly makes me think apps, and loss of power will also occur when apps voltage is too low. check your codes!!!

Sounds like a new IP in your future. You can do an apps reset, it maybe the problem.

Apps Reset Procedure:
FAQ

Have you checked the fuel filter lately? On my truck it would be fine cold once it warmed up it didnt want to run and it was the filter was clogged.