1973-1991 Dual fuel tank systems theory of operation - The 1947 - Present Chevrolet & GMC Truck Message Board Network

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1973-1991 Dual fuel tank systems theory of operation

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02-25-2026, 08:36 PM	#38
Mbeef61 Registered User Join Date: Jun 2009 Location: Portland - OR Posts: 247	Re: 1973-1991 Dual fuel tank systems theory of operation So just forget about the orange wire with 12v from the fitech unit? And just utilize the 12v from the dash switch? Or would running this orange fuel pump wire to the 12v at the dash switch be best to retain the fuel pump prime function? Last edited by Mbeef61; 02-25-2026 at 08:54 PM.

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