The bi-colored LED turns red at 5-6 PSI. Meaning at 5-6 PSI it will start sending voltage to spin the pump. It will change to green when "Pressure" is made by the system. Understand the word "Pressure". As the pump spins.. it fills the line.. the nozzle becomes the restriction.. and then the fluid backs up(Pressure).. once the system makes pressure based on the screw setting it changes the LED from Red to Green. The more aggressive you have the Gain knob set, the faster it makes pressure. The more nozzles and the larger the nozzles the more delay in getting the system to change from Red to Green.
If you leave the system as is.. as it was sent out.. watch for knock. If you dont pickup any knock.. leave it alone. And just observe how it responds on your car. From this point, this becomes your reference how its suppossed to respond.
There is always going to be a time delay making pressure, that is why the system is set to activate at 5-6 PSI so by the time your at 15+ PSI.. there is alky flowing into the motor. Just becuase the LED is not green does not mean there is no alky, all it means is whatever the screw was set to change color has not been met. In other words if the screw is set to 40 PSI, and your at 39 PSI pressure.. the LED will be red.. but plenty of alky will be flowing at 39 PSI. Hope this makes sense.
