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Old 03-25-2013, 02:01 PM   #3
b.eddy's72
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Join Date: Nov 2009
Location: WEATHEROFRD, TX
Posts: 164
Re: 72 all wired with tbi couple of questions

My buddy did the swap but he used the entire wiring harness from the donor truck. TBI harnesses have multiple grounds that HAVE to be grounded properly. I would suggest to get a wire diagram for the vehicle the harness is out of and track down each 12 source and ground to make sure they are properly attached to the needed source. If it harness was installed properly you should not have needed to run your own power to the injectors or fuel pump.
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72 Chevy LB, LS in the works, 4L80, Grandfather bought it brand new.
66 GMC Short Step, 84 Front Suspension, many more mods to come
67 Chevy 3/4 Ton, 327, Auto, Factory A/C

Ya must have been movin cause I was haulin a*$ when I passed you
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