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fuel pump wiring si conversion to 1.8

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Old Jul 8, 2008 | 05:52 PM
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fonfe
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Default fuel pump wiring si conversion to 1.8

ok quite embarrassed really as i cant seem to work this one out
got hold of a 1.6 si on an m plate, the head was fucked on the car when i got it and i had a 1.8 zetec that i used to run in my mk4 escort so figured sling that in along with its pre pats ecu and loom.
my problem is the fuel pump, according to the wiring diagram the fuel pump feed wire should be black/red....
BUT i have 4 wires going to the pump/sender and they are all brown!
i have continuity between 3 of the 4 wires which really stumped me and i have continuity from each of those 3 wires up to the fuel pump relay, the relay is a five pin white one.
the relay however is dead as the car had pats and obviously that is not not alive as ive put in the 1.8 ecu and loom so there should be no feed to it correct?
all im trying to find out is which of these dam brown wires do i need to give a switched ignition live to get the pump working? originally i thought just give 12v to the 4 brown wires one by one, but i didnt do this for fear of damaging the sender which is still working as the gauge is working. and im really confused as to why 3 of the 4 wires have continuity between them as surely they cant be 3 wires that all go to the same place as it would of made more sense to put in just one, and then that only leaves one wire for the sender?
am i missing something here???
any help much appreciated as im starting to feel rather dumb now! and for the record wiring is really not my thing so please dont take the piss lol
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Old Jul 9, 2008 | 06:00 PM
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fonfe
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ok sorted it, dropped the tank out, took the pump out. the wires change colour through the plug so finding the black and red ones for the fuel pump, was easy if anyone ever has the same problem!
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