The 1947 - Present Chevrolet & GMC Truck Message Board Network - View Single Post - Installed '90 GM Factory EFI tank, '72 Blazer Factory fuel gauge is pegged past full?

Okie528 · 08-13-2017, 06:48 PM

Ok, ground is good. My sending unit is a four wire (Gray wire - Fuel pump power, Purple - Sending unit, Black w/white stripe-I assume ground, then another black wire-ground. I have the both the black and black with white stripe grounded to the same spot. Does this shed any light to my problem? Truck runs as it should, just no fuel gauge.

08-13-2017, 06:48 PM	#2
Okie528 Registered User Join Date: Feb 2016 Location: Maryville, TN Posts: 44	Re: Installed '90 GM Factory EFI tank, '72 Blazer Factory fuel gauge is pegged past f Ok, ground is good. My sending unit is a four wire (Gray wire - Fuel pump power, Purple - Sending unit, Black w/white stripe-I assume ground, then another black wire-ground. I have the both the black and black with white stripe grounded to the same spot. Does this shed any light to my problem? Truck runs as it should, just no fuel gauge.