Re: Wire diagram for fuel bowl/ipr?
What year is your truck? The EVTM are strange in this area. 1994's show a connector C138 twice (the big one on the firewall and another for the fuel bowl stuff, 12-pin but only 10 used. I don't remember my 94 having one like this as I bought the later fuel bowl harness and it worked fine). 1995 EVTM shows C138 in the diagrams, but does not show the pinout. 1996 and 1997 show the fuel filter connector as C1047. Its a 6-pin connector (2 rows of 3 pins). Pinout is as follows (difference in color as noted):
Pin 1: Circuit 361, Red wire, IPR
from Main Harness
Pin 2: Circuit 552, Yellow wire with Red trace, IPR
Pin 3: Not Used
Pin 4: Circuit 42, Red wire with White trace (1994-1996) or Circuit 1031, Light Green wire (1997), Fuel Restriction sensor
Pin 5: Circuit 327, Red wire with Black trace, Water-In-Fuel sensor
Pin 6: Circuit 16, Red wire with Light Green trace, Fuel Heater
Hope that helps! Cheers!
97 F250 SC 4x4, E4OD, 4.10 LS, Basically Stock, Relocated Block Heater Plug, Ext Trans Filter, Tru-Cool Max, I/C Mounted but not Plumbed
SOLD: 94 F350 CC DRW PSD, 5 Speed, 4.10 LS, SBC Con-O, Baldwin Filter, Tymar HPX Hose, 3” DP, Bilsteins, $12 AIC, Coolant Filter, Explorer O/H Console, Trans Temp, Boost, and Pyro, Pedestal Mod, Gutted EBPV