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Old 04-28-2004, 10:17 PM   #1
MrSeKrEt
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Join Date: Apr 2004
Location: Lansing MI
Posts: 8
Fuel pump wiring

I’m looking over the factory service manual and I can't seem to find out what wire powers the fuel pump. There are five wires from the relay and none to the pump it's self. It’s a 3/4 ton 87 TBI. Is the fuel pump ran off the ecm? Or something else? Thanx for any help.
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