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Old 01-23-2006, 10:06 PM
dawnnewsome3 dawnnewsome3 is offline
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Re: 88GMC C3500 ECM-B no power

I have a 88 c1500 5.7 that had recient fuel pump problems,no voltage to the pump or relay ended up being a bad low oil pressure fuel cut off switch located beside my dist. should be able to disconnect the plug and jump the orange wire and the gray wire with the switch on the fuel pump should have power. the tan wire runs to the dash. by my book this is the same for 88-95 engine controls
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