Low rail pressure??

i just put this pump on...its a duramax cp3 pump heard they flowed a little better but i don't really know the history of the pump and im thinkin its bad
 
i have heard the same thing but i am not sure i just bought twin pump kit and its got a dmax pump in it what kinda twin pump kit do u have and where is the pressure sensor located
 
Please share exactly what setup you Have?.. D-Pump with modded Tubes and stock rail is a no no. also the D-pump on stock sensor produce 3kto4k only at idle.
 
yes,its a duramax pump with bigger tubes and stock rail...and i put the sensor on it off my old cummins cp3 pump
 
i had a simmular problem ended up being two loose injector lines jus 1/4 turn loose messed with powere and rail pressure a bunch
 
yea i've double checked all the lines everythings good...How much power did you lose??
I cant even get into 5th or 6th gear cuz it doesn't have enough power to get going that fast
At WOT it should have about 25-27k rp and its got like 10k
 
Do you have the sensor on the rail or the D-Pump Block.

Please just call Me I cannot set aside enough time on Posting for a correct Fix..
 
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