ipp pressures

[darrenjlobb]

As Ruan said, there are differences in pump design, I call the ones with solenoids "cruise pumps" they basically have an extra fuel way that bleeds fuel pressure from the pump body when the gov is in the extended position, meaning that when your doing 5krpm cruising with no load, there isnt the same ammount of advance as there would be under load, or with a pump without the system, just keeps engine noise down / technically helps mpg...