I think it says that its set at 15psi from the factory but is it adjustable and how much is it supposed to be to the cp3? Do I have to buy a gauge and tap the line to find out how much I have?
my gauge says 15psi aswell never had any issues:thumbsup:the only way to adjust it is to replace the return spring (in the tank return line) the way it regulates pressure is the amount of head resistance in the return side. so if you kink the return line, your pressure will go sky high (and probably kill the AD pump) but just so you know how it works. there is a little check ball with a spring in that return line. more spring pressure on the ball = more fuel supply pressure. pureflow sells different springs to achieve different pressures.
not positive on correct pressure to the cp3 but 15 should be great.
Mine stays on 22 psi almost all the time. Never seen it below 18, and it's a little noisy. Sometimes, when idling, I can hear the pump and it makes a kind of whining pulsing sound. Anybody else hear this pulsing noise with their pump?