I've seemed to misplace the instruction manual and I want to turn up the pump. I just got my puel pressure guage hooked back up and its reading about 16-17 psi on the guage and I want to turn it up to about 25 with the modified Cp3 I have. I know there's a knob to turn, but not sure which direction to turn it. Should I have the truck running so I can see the psi go up? I only have about 4 months on the filters so I know there still good. I thought the pump was supposed to be set at 26psi out of the box, but maybe i'm wrong. Any help would be greatly appreciated.
Chris
Chris