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name this part,tbi 350
I have chevy tbi in 72, donor harness is 1991 chevy 1500 . engine is 1990 suburban,
I have a couple of pieces on the harness that im not sure of , if u know please tell me what they are and what they do please.
one is the plug with 2 gray wires going in to it that is jumped with a fuse .this plug with the fuse if u pull it truck stops running. i believe its some how attached to the fuel pump relay.
the other is this gray box has a circuit board in it,
the other is the fuel pump relay green/ white wire. only starts if i have 12 volts to gr/ white wire. it is partly bare to attach 12v to , is this all right cant find any were to attach 12 to get it to work any ideas.
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