New Fuel Pump. Cranks won't start.

2012 Cascadia DD15 Three Filter Fuel Module.. It's been about 2 months(10-20kmiles) since I last installed my fuel pump and it only worked for about 2 weeks without cranking issues. Since then I've had to use starting fluid spray to operate and recently have had the time and money to have it checked out. So the fuel pump is not building any pressure up on the crank, I believe I had seen 20 bar psi which is nothing at all. After using spray and the engine is on the fuel pressure is good and it operates just fine with no issues idling or down the road. Previously those were two issues the new fuel pump had solved, rough idle and sputtering while driving. Now, this cranking, no start issue is a real pain. Mechanic suggested it was a fuel pump that just went bad, and I plan to have it checked out by someone else in the near future. I don't quite remember if the fuel filters had been replaced with the new pump but I know they were recently replaced with an oil change. This had been an issue with the old fuel pump as well. Any other suspected issue than the fuel pump itself?

 

No it wont turn back on

 

Thank you, I hadn't heard of a transfer pump I will look into it.

 

know where that i

No it was installed by my mechanic friend. The truck has 497K

 

Is that connected the fuel module or somethin? Looking for a part that fits that description of transfer pump.