problem with HP EFI fuel PSI sensor.

[chpr1972]

After updating to V5, I took car for a drive, Put about 30/40 miles on it hooked to my lap top. We stopped for dinner and on way home the car started surging. Dying once coming up to a stop sign. Like a dummy I did not hook the laptop up on way home. When I hooked the laptop up the fuel PSI on the dash was going from 0 to minus 11 PSI. Going out, the warning lite for fuel Psi was not coming on. When I hooked it up to the laptop at home the warning light was flashing! When I called Holly, they say that there is no way to shut off that part of the computer even tho I do not have a fuel PSI sensor. [ guage at the regulator ] Fuel guage was reading just over 40 PSI. Holly says that not having the PSI sensor hooked up is not a problem even tho the HP data reads that a 554-102 sensor is installed! ARE THEY RIGHT? Or should I spend the $120 to buy a sensor? It was not a problem before with the V2, but I do not remember listing a fuel psi sensor when the HP was installed about 5000 miles ago.