Two fuel pumps in 1988 STX
My son is working on a 1988 STX Ranger. We discovered it has two fuel pumps. The one in the tank is described in the Haynes manual for 1985-1988 models as a low pressure pump and the one bolted on the frame is called the high pressure pump.
The "typical" wiring diagram shown for the 2.9 liter does not have any reference to the two fuel pumps. Is the second "high" pressure pump wired in the same fashion as the "low" pressure pump? We finally got the low pressure pump working, but not sure if the second high pressure pump is. The truck runs and idles, but we haven't driven it yet.