04 Cobra - dual ford gt pumps, voltage, only 30 psi fuel
Ok, new member. Purchased an 04 Cobra 2 years ago and hasn't been driven due to a loss of fuel pressure under boost. Fuel pressure is 29 lbs at start up, new FPS sensor. Pressure never raise above 30-35 psi and actually zeroes out with boost. Has dual ford GT pumps with fore hat and 60 lb injectors. Also has stage 1 modified FPDM. The voltage on the upgraded gauge wires coming out of the FPDM has a fluctuating 3 volts at idle on one and fluctuating 12 volts on the other. Do I have a fuel pump issue with one bad pump? How does the FPDM see the pumps? Does it only see one and is commanding full cycle at 12 volts to increase pressure but that pump isn't working and the car is only running on the other pump at 3 volts? Should the tank be dropped and each pump jumped? Thank you.